Help Asha identify whether the reaction is a synthesis or decomposition reaction: 2 HCI → H₂ + Cl₂
A) Synthesis
B) Decomposition

Answer:

36 tabs

Explanation:

Bid is 2 times per day

2 tablets tid is 6 tablets a day

In 3 days, that is 18 tablets

2 tabs bid for 3days is 4x3 =12 tablets

1 tab daily for 3 days = 3 tablets

1 tab every other day, 3 doses is 3 tab

Add all. 18+12+3+3

Answer:

Burning of wood is chemical change

Dry ice into Carbon dioxide conversion is physical change.

Explanation:

Because when wood is burnt it cannot be recovered back by tthe ashes. So it is chemical change.

Dry ice conversion into Carbon dioxide is a physical change because the chemical composition remains same.

Answer:

wood = chemical

dry ice = physical

Explanation:

Answer:

At the top of a seamount, the temperature is generally cooler and the pressure is lower compared to the bottom of a trench. This is because the its closer to the ocean surface, where sunlight and atmospheric conditions can affect the temperature and pressure.

The bottom of a trench is located at a much greater depth and is subject to extreme pressure and temperatures. The temperature at the bottom of a trench can be very high due to the heat generated by tectonic activity and volcanic processes.

Explanation:

Answer:

Below

Explanation:

For Carbon:

40.002 % * 180.156   = 72.066 gm/mole C     per mole of fructose

For Hydrogen:

6.714 %  * 180.156     = 12.096  gm H

For Oxygen:

53.285% *  180.156  = 95.966 gm of O

Now use periodic table to find mole wts of each

   72.066 / 12.011   = 6    moles of C per mole of fructose   ( wt = 12.011)

   12.096/ 1.008    =  12   moles of  H                                     (wt = 1.008)

    95.966/15.999 = 6     moles of O                                      (wt = 15.999)

C6 H12 O6     is MOLECULAR formula     divide everything by 6

C H2 O     is EMPIRICAL

Answer:

Explanation:

For NaOH:

Molarity = moles of solute / liters of solution

Molality = moles of solute / mass of solvent (in kg)

Normality = equivalents of solute / liters of solution

First, we need to find the moles of NaOH:

moles of NaOH = mass of NaOH / molar mass of NaOH

moles of NaOH = 20 g / 40 g/mol

moles of NaOH = 0.5 mol

Next, we need to find the liters of solution:

liters of solution = 600 mL / 1000 mL/L

liters of solution = 0.6 L

Now we can calculate the molarity:

Molarity = 0.5 mol / 0.6 L

Molarity = 0.833 M

To find the molality, we need to find the mass of the solvent (water) in kg:

mass of solvent = volume of solution x density of solvent

mass of solvent = 0.6 L x 1.10 g/mL

mass of solvent = 0.66 kg

Now we can calculate the molality:

Molality = 0.5 mol / 0.66 kg

Molality = 0.758 mol/kg

Finally, to find the normality, we need to know that NaOH is a monoprotic base (i.e. donates one H+ ion per molecule). Therefore, the equivalents of NaOH is equal to the moles of NaOH:

Normality = 0.5 eq / 0.6 L

Normality = 0.833 eq/L

For Ba(OH)2:

Molarity = moles of solute / liters of solution

Molality = moles of solute / mass of solvent (in kg)

Normality = equivalents of solute / liters of solution

First, we need to find the moles of Ba(OH)2:

moles of Ba(OH)2 = mass of Ba(OH)2 / molar mass of Ba(OH)2

moles of Ba(OH)2 = 50 g / (137.33 g/mol x 2)

moles of Ba(OH)2 = 0.182 mol

Next, we need to find the liters of solution:

liters of solution = 800 mL / 1000 mL/L

liters of solution = 0.8 L

Now we can calculate the molarity:

Molarity = 0.182 mol / 0.8 L

Molarity = 0.227 M

To find the molality, we need to find the mass of the solvent (water) in kg:

mass of solvent = volume of solution x density of solvent

mass of solvent = 0.8 L x 1.15 g/mL

mass of solvent = 0.92 kg

Now we can calculate the molality:

Molality = 0.182 mol / 0.92 kg

Molality = 0.198 mol/kg

Finally, to find the normality, we need to know that Ba(OH)2 is a diprotic base (i.e. donates two H+ ions per molecule). Therefore, the equivalents of Ba(OH)2 is twice the moles of Ba(OH)2:

Normality = 0.364 eq / 0.8 L

Normality = 0.455 eq/L

Molarity of H3PO4:

First, calculate the number of moles of H3PO4:

m(H3PO4) = 40 g

Molecular weight of H3PO4 = 3(1.01) + 1.01 + 4(16) = 98 g/mol

n(H3PO4) = m(H3PO4) / M(H3PO4) = 40 g / 98 g/mol = 0.4082 mol

Now, calculate the volume of the solution in liters:

V = 900 mL = 0.9 L

Molarity (M) = n / V = 0.4082 mol / 0.9 L = 0.4536 M

Molality of H3PO4:

Mass of solvent (water) = (900 mL) x (1.30 g/mL) - 40 g = 1040 g

Molality (m) = n(H3PO4) / m(solvent) = 0.4082 mol / 1.040 kg = 0.3929 m

Normality of H3PO4:

H3PO4 is a triprotic acid, meaning that it can donate up to three protons (H+ ions) per molecule. The normality of H3PO4 depends on which proton(s) we are interested in. Here, we will calculate the normality with respect to the first proton.

One mole of H3PO4 can donate three moles of H+ ions, so the equivalent weight (the weight that can donate one mole of H+ ions) of H3PO4 is its molecular weight divided by three:

Equiv. Wt. = 98 g/mol / 3 = 32.67 g/mol

Normality (N) = Molarity x Number of H+ ions donated per molecule / Equivalent weight

For the first proton, the number of H+ ions donated per molecule is 1. Therefore:

N = 0.4536 M x 1 / 32.67 g/mol = 0.01388 N

First, we need to calculate the number of moles of Na2CO3:

Molar mass of Na2CO3 = 2(23) + 12 + 3(16) = 106 g/mol

Number of moles of Na2CO3 = mass/molar mass = 25 g / 106 g/mol = 0.235 moles

Next, we can calculate the molarity, molality and normality using the following formulas:

Molarity = moles of solute / liters of solution

Molarity = 0.235 moles / 1 L = 0.235 M

Molality = moles of solute / mass of solvent (in kg)

Density of solution = 1.05 g/mL = 1050 kg/m³

Volume of solution = 1000 mL = 1 L

Mass of solvent = volume of solution x density of solution = 1 L x 1050 kg/m³ = 1050 g = 1.05 kg

Molality = 0.235 moles / 1.05 kg = 0.224 mol/kg

Normality = (moles of solute x equivalent weight) / liters of solution

The equivalent weight of Na2CO3 is equal to its molar mass divided by the number of hydrogen ions it can donate in a reaction, which is 2.

Equivalent weight of Na2CO3 = molar mass / 2 = 106 g/mol / 2 = 53 g/eq

Normality = (0.235 moles x 53 g/eq) / 1 L = 12.455 N

The pressure of the substance from the problem we have here is  3.8 atm

The ideal gas equation, also known as the equation of state for an ideal gas, is given by:

PV = nRT

where P is the pressure of the gas, V is its volume, n is the number of moles of the gas, R is the ideal gas constant, and T is the absolute temperature of the gas.

This equation relates the pressure, volume, temperature, and amount of gas in a closed system assuming that the gas behaves as an ideal gas.

We know that;

PV = nRT

P = nRT/V

P = 0.3 * 0.082 * 313/2

p = 3.8 atm

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 Answer:
It is exothermic because heat needs to be released by the reactants to form the products.

Answer:

Explanation:

The balanced chemical equation for the reaction between sulfuric acid and calcium hydroxide is:

H2SO4 + Ca(OH)2 → CaSO4 + 2H2O

This reaction is a double displacement reaction, also known as a precipitation reaction. The sulfuric acid reacts with the calcium hydroxide to form calcium sulfate (a precipitate) and water. The balanced equation shows that one molecule of sulfuric acid reacts with one molecule of calcium hydroxide to form one molecule of calcium sulfate and two molecules of water.

The reaction is classified as a double displacement or metathesis reaction.

A double displacement reaction is a type of chemical reaction in which two reactants exchange ions or compounds to form new products.

During this reaction, the positive and negative ions of two compounds switch places, resulting in the formation of two new compounds. A common example of a double displacement reaction is the reaction between silver nitrate and sodium chloride, which forms silver chloride and sodium nitrate.

Double displacement reactions are also known as metathesis reactions or exchange reactions.

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The solutions to the above questions on potential and kinetic energy are as follows:

1. 5.774m/s

2. 9702J

3. 0.71kg

4. 114.4kg

5. 135.05kg

Kinetic energy is the energy possessed by an object because of its motion, equal (nonrelativistically) to one half the mass of the body times the square of its speed i.e. K.E = ½mv²

QUESTION 1:

If an object has 25,000 joules of energy and a mass of 1500kg. The velocity can be calculated as follows:

25000 = ½ × 1500 × v²

v² = 33.3

v = 5.774m/s

QUESTION 2:

How much potential energy does an object have if it is 45 metres up in the air and has a mass of 22kg.

P.E = mgh

P.E = 22 × 9.8 × 45

P.E = 9702J

QUESTION 3:

The mass of an object that is 250m high in the air and has 1750J of energy is

1750 = m × 9.8 × 250

1750 = 2450m

m = 0.71kg

QUESTION 4:

The kinetic energy of an object is 35,750J moving at a velocity of 25m/s. The mass is as follows:

35750 = ½ × m × 25²

35750 = 312.5m

m = 114.4kg

QUESTION 5:

The potential energy of a boulder is 45,000J and is sitting 34m high. The mass of the boulder can be calculated as follows:

45000 = 34 × 9.8 × m

45000 = 333.2m

m = 135.05kg.

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Answer:

0.509 (to 3dp)

Explanation:

The formula for moles is:

moles = mass ÷ molar mass

The molar mass of NaCl can be calculated by adding the relative atomic masses of each element in the compound, which you can find in a periodic table:

molar mass = 23.0 + 35.5 = 58.5

Now, we can find the number of moles of NaCl in 29.8g:

moles = 29.8 ÷ 58.5 = 0.509 (to 3dp)

At equilibrium, the pressure of each component in the reaction must be equal to the partial pressure of the component (pH2S = 0.225 atm, pH2 = pS = 0.819 x 0.225 atm = 0.182975 atm).

Equilibrium is a state of balance between opposing forces. It refers to a state in which opposing forces or influences are balanced and in equilibrium with one another. This idea is used in many different areas, from economics to physics. In economics, equilibrium is a state in which market supply and demand are balanced and in relative stability, and prices remain relatively constant. In physics, equilibrium is a state in which all forces acting on a body cancel each other out, leading to a state of rest or motionlessness. In both cases, equilibrium represents a stable state, and any changes to the system will disrupt it.

The total pressure in the container at equilibrium is then equal to the sum of the partial pressures of each component, which is 0.225 + 0.182975 + 0.182975 = 0.59095 atm.

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The number of unpaired electrons present in the ground state of O, O⁻, O⁺,Os, Zr, S, F, Ar are 2, 3, 1, 4, 2,1 and 0 respectively.

An unpaired electron is an electron that does not form part of an electron pair and occupies an atom's orbital single. Each of an atom's three atomic orbitals, designated by the quantum numbers n, l, and m, has the capacity to hold a pair of two electrons with opposing spins. Unpaired electrons are extremely uncommon in chemistry because an object carrying an unpaired electron is typically quite reactive. This is because the production of electron pairs, whether in the form of a chemical bond or as a lone pair, is frequently energetically advantageous.

1)The electrical configuration of a chemical must first be determined in order to calculate the amount of unpaired electrons in the compound.

2)The next step is to set the electrons in their shells and count the unpaired electrons.

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The least point in this diagram, A, is where a cart pulling a brick is being dragged up an inclined surface.

This energy can be utilized later to move an item since it can be stored and utilized at a later time. Gravitational Three things affect potential energy: mass, gravity, and elevation. These three variables are directly inversely related to energy.

Potentially energy is a type of energy that depends on how various system elements interact with one another. A spring's potential energy rises when it is compressed or stretched. A steel ball has more potential energy if it is raised just above earth as opposed to dropping to it.

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The correct answer is option c ΔH = -23.7 kJ/mol and AE = 10.3 kJ/mol

What is catalyst?

A catalyst is a substance that increases the rate of a chemical reaction by lowering the activation energy required for the reaction to occur, without undergoing any permanent chemical change itself. Catalysts work by providing an alternative pathway for the reaction that has a lower activation energy, allowing more reactant molecules to participate in the reaction and increasing the rate of product formation. Catalysts are widely used in industrial processes to increase the efficiency of chemical reactions and reduce the amount of energy required to produce a given amount of product. Some common examples of catalysts include enzymes in biological systems, transition metals such as platinum and palladium used in catalytic converters in cars, and acid or base catalysts used in the production of many chemicals.

Due to this, The activation energy (AE) is the minimum energy required to initiate a chemical reaction, and a catalyst can lower the activation energy required for a reaction to occur. However, a catalyst does not change the overall energy difference between the reactants and products (ΔH) of the reaction. Therefore, the only possible value for ΔH in the presence of a catalyst is still -23.7 kJ/mol.

Of the given answer choices, only ΔH = -23.7 kJ/mol and AE = 10.3 kJ/mol is a possible combination . The activation energy can be lowered to any value less than the original value of 27.9 kJ/mol, but it cannot be increased. Therefore, only the lower value of AE = 10.3 kJ/mol is a possible value in the presence of a catalyst.

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In the given options, there are some characteristics of behavior is given. The one which is not the characteristic of a behavior is "it can be recorded", b is correct.

There are some actions and manners that are shown by humans or animals. It is induced by stimuli or inputs from the environment whether internal or external, conscious or subconscious, overt or covert, and voluntary or involuntary. For example -

When suddenly a person meets his or her relative then how that person reacts, whether he or she shows good manners or ignore them is part of their behavior.

Therefore, in the given options, there are some characteristics of behavior is given. The one which is not the characteristic of a behavior is "it can be recorded", b is correct.

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Answer:

The intermolecular forces increase in the following order:

C2H6 < CH4 < CH3F < NH3

The reasoning behind this order is as follows:

C2H6 (ethane) is a nonpolar molecule with only dispersion forces, which are the weakest intermolecular forces.

CH4 (methane) is also nonpolar and only has dispersion forces, but it has a slightly larger molecular weight than ethane, which leads to stronger dispersion forces.

CH3F (fluoromethane) is polar and has dipole-dipole forces in addition to dispersion forces. The dipole-dipole forces are stronger than the dispersion forces in this case.

NH3 (ammonia) is also polar and has hydrogen bonding, which is a stronger type of dipole-dipole force.

Explanation:

A chemical reaction is started by adding the borax solution to the glue mixture. A elastic, springy new material is produced when the glue and borax molecules interact.

Although cleaning is borax's most well-known application, the substance is also included in a wide range of home goods, such as specialty toothpastes and mouthwashes. goods for treating acne, including lotions, skin creams, moisturizers, and sunscreen. Ceramic glaze and paint.

Borax (sodium tetraborate) is different from baking soda (sodium bicarbonate). Both salts and widely used as "green" home cleaners, baking soda and borax have pH values of 8 and 9.5, respectively.

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Answer: dont get it

Explanation:

Answer:

B. The products will contain 4 Cu atoms and 5 H₂O molecules.

Explanation:

Answer:

Photosynthesis produces glucose, then cellular respiration uses it to make energy along with carbon dioxide. The energy from the glucose is conserved because it doesn't get destroyed

Answer:

Photosynthesis produces glucose, then cellular respiration uses it to make energy along with carbon dioxide. The energy from the glucose is conserved because it doesn't get destroyed.

Answer:

The kinetic molecular theory explains the movement of molecules within gases.

Explanation:

Rounding to three significant figures, potassium chlorate makes up 55.0% of the mixture by mass.

2 KClO3(s) → 2 KCl(s) + 3 O2(g)

2.04 g O2 × (1 mol O2 / 32.00 g O2) = 0.06375 mol O2

We can determine the quantity of KClO3 in the sample by calculating the amount of O2 produced by 2 moles of KClO3:

0.04250 mol KClO3 = 0.06375 mol O2 (2 mol KClO3 / 3 mol O2)

Percent by mass of KClO3 = (0.04250 mol KClO3 × 122.55 g/mol KClO3) / 9.51 g × 100% = 55.0%

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The experimental yield is 2.9 g, the theoretical yield is 2.96 g, and the percent yield is 97.97%.

How to find the experimental yield, theoretical yield and Percent yield?

To find the experimental yield, we need to determine the weight of copper chloride (CuCl) obtained from the reaction. We can calculate this by subtracting the weight of the watch glass and filter paper from the weight of the watch glass, filter paper, and CuCl precipitate:

Weight of CuCl = (Weight of Watch Glass + Filter Paper + CuCl Precipitate) - (Weight of Watch Glass and Filter Paper)

Weight of CuCl = 13.4 g - 10.5 g

Weight of CuCl = 2.9 g

To find the theoretical yield, we need to calculate the amount of copper that should be produced based on the reaction stoichiometry. The balanced chemical equation for the reaction between copper and nitric acid is:

Cu + 4HNO3 → Cu(NO3)2 + 2NO2 + 2H2O

From the equation, we can see that one mole of copper reacts with four moles of nitric acid to produce one mole of copper(II) nitrate (Cu(NO3)2). The molar mass of copper is 63.55 g/mol, so the amount of copper used in the reaction is:

Amount of Cu = Weight of Cu / Molar mass of Cu

Amount of Cu = 1.034 g / 63.55 g/mol

Amount of Cu = 0.016 mol

Since one mole of copper produces one mole of copper(II) nitrate, the theoretical yield of copper(II) nitrate is also 0.016 mol.

The theoretical yield of copper(II) nitrate is:

Theoretical yield = Amount of Cu(NO3)2 x Molar mass of Cu(NO3)2

Theoretical yield = 0.016 mol x 187.57 g/mol

Theoretical yield = 2.96 g

Finally, we can calculate the percent yield using the formula:

Percent yield = (Experimental yield / Theoretical yield) x 100%

Plugging in the values we calculated, we get:

Percent yield = (2.9 g / 2.96 g) x 100%

Percent yield = 97.97%

Therefore, the experimental yield is 2.9 g, the theoretical yield is 2.96 g, and the percent yield is 97.97%.

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Therefore, the volume of the balloon will be 8.7 L when taken outside at a temperature of 2 degrees Celsius.

Volume is a measure of the amount of space occupied by a three-dimensional object or substance. It is usually measured in cubic units, such as liters, cubic meters, or cubic feet. Volume can be calculated by multiplying the length, width, and height of an object (in the case of regular-shaped objects), or by using mathematical formulas or measurements of displacement (in the case of irregular-shaped objects or substances). Volume is an important concept in physics, chemistry, and engineering, as it is used to describe the behavior of gases, liquids, and solids, as well as the properties of various materials and substances.

Here,

To solve this problem, we can use the ideal gas law, which states that PV = nRT, where P is the pressure of the gas, V is its volume, n is the number of moles of gas, R is the gas constant, and T is the temperature of the gas in Kelvin.

To find the final volume of the balloon, we need to assume that the pressure and the number of moles of gas remain constant. Therefore, we can write:

P1V1/T1 = P2V2/T2

where P1 is the pressure at the initial temperature, T1 is the initial temperature in Kelvin, P2 is the pressure at the outdoor temperature, which we assume is the same as the initial pressure, and T2 is the outdoor temperature in Kelvin.

To convert Celsius to Kelvin, we add 273.15 to the Celsius temperature. Therefore, T1 = 24 + 273.15 = 297.15 K and T2 = 2 + 273.15 = 275.15 K.

Substituting the values into the equation, we get:

V2 = (P1/T1) x T2 x V1/P2

= (1 atm / 297.15 K) x 275.15 K x 9.2 L / (1 atm)

= 8.7 L (rounded to the nearest tenth)

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The amount of heat required to convert 94 g of ice at -31◦C to steam at 143.6◦C is 2.32 kJ.

Amount is a monetary measurement of value. It is a numerical value assigned to goods, services, and other transactions that indicate their worth in a currency. Amounts are used to quantify the size of a purchase or sale, and to determine the cost or value of an item. Amounts are also used to track debts, credits, investments, and other financial transactions.

This can be calculated using the formula for heat, Q = mCΔT, where m is the mass of the object, C is the specific heat capacity, and ΔT is the change in temperature. In this case, m is 94 g, C is 4.184 J/g · ◦C for water, and ΔT = 174.6◦C. Therefore, Q = 94 × 4.184 × 174.6 = 2.32 kJ.

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The exponent to the power of 0 would be the correct answer in this situation.

Initial rate is the rate of reaction at the beginning of a chemical reaction. It is usually measured at the start of the reaction and is usually higher than the rate at equilibrium. The initial rate is an important factor in determining the rate of reaction and the products of the reaction. It can be used to determine the effects of various factors such as temperature, pressure, and concentration on the reaction rate.

Exponents represent the number of times the base number is multiplied by itself. So, if the rate does not double nor stay the same, then it is not being multiplied by itself, so the exponent would be to the power of 0.

Exponentiation can be used to show how many times a number is multiplied by itself, and this is done by raising the base number to a certain power. For example, 4 to the power of 3 means 4 x 4 x 4 = 64. In this case, the exponent is 3.

If the initial rate does not double nor stay the same, then the power associated with the exponent would be 0. This is because the rate is not being multiplied by itself, so it would not be associated with any power. Therefore, the exponent would be to the power of 0.

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Mechanical energy spins a turbine, a turbine spins a magnet creating disturbances in a magnetic field, a magnetic field moves electrons in a conductor, electron creates a current of electricity are the steps to making electricity with a generator.

What is electric field ?

According to mathematics, the electric field is described as a vector field that may be connected to each point in space and represents the force per unit charge that is applied to a positive test charge that is at rest at that location. Either the electric charge or time-varying magnetic fields can produce an electric field.

What is energy?

The capacity to work comes from energy. Energy types include chemical, nuclear, and electrical energy. Science and engineering both depend on the idea of energy. Here is a look at the classification of energy as well as its description and examples.

Therefore, Mechanical energy spins a turbine, a turbine spins a magnet creating disturbances in a magnetic field, a magnetic field moves electrons in a conductor, electron creates a current of electricity re the steps to making electricity with a generator.

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Answer:

The correct order of the steps to making electricity with a generator is:

First, mechanical energy is used to spin a turbine, which is typically connected to a magnet. As the turbine spins the magnet, it creates disturbances in a magnetic field. These disturbances then cause the magnetic field to move electrons in a nearby conductor, such as a wire. This movement of electrons creates a flow of electrical current through the wire, which can be used to power various devices. Therefore, the final step is the production of electricity, as electrons flow through the conductor and create a current of electricity.

The pressure at the final temperature can be determined using Gay- Lussacs law. The pressure will increases to 1692 kPa when the temperature increases to 54 degree Celsius.

Gay -Lussacs law states that, at constant volume of a gas, the pressure of the gas is directly proportional to the temperature.

hence,

P/T = constant.

For two different pressure and temperature,

P1/T1 = P2/T2

Given,

P1 = 846 Kpa

T1 = 27 °C

T2 = 54 °C.

Then,

P2 = P1 T2/T1

     =  846 Kpa ×  54 °C / 27 °C

     = 1692 kpa.

Therefore, the final pressure of the gas in the cylinder is 1692 kpa.

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If the pressure of a gas in a cylinder at 27.0 ⁰C is 846 kPa. Then from Gay-Lussac's Law, we can calculate the pressure in the cylinder when the temperature is increased to 54.0 ⁰C IS  922.1kPa. The correct option is A.

Gay-Lussac's Law, also known as the Pressure-Temperature Law.

It is a gas law that states that, at constant volume, the pressure of a gas is directly proportional to its absolute temperature. This means that as the temperature of a gas increases, its pressure also increases, and as the temperature of a gas decreases, its pressure also decreases, as long as the volume remains constant.

Mathematically, Gay-Lussac's Law can be expressed as:

P₁/T₁= P₂/T₂

Where

P₁ and T₁  = are the initial pressure and temperature,

P₂and T₂  = the final pressure and temperature,

This relationship is important in many practical applications, such as in the design of internal combustion engines and in the study of weather patterns. Gay-Lussac's Law is named after the French chemist Joseph Louis Gay-Lussac, who first discovered this relationship in 1802.

Here in the question,

We can use the following formula to solve this problem:

P₁/T₁= P₂/T₂

Where

P₁ and T₁  = are the initial pressure and temperature,

P₂and T₂  = the final pressure and temperature,

Plugging in the given values, we get:

P₁ = 846 kPa

T₁  = 27.0 ⁰C + 273.15 = 300.15 K

T₂ = 54.0 ⁰C + 273.15 = 327.15 K

Solving for P₂, we get:

P₂= P₁x (T₂/T₁ ) = 846 kPa x (327.15 K/300.15 K) ≈ 922.1 kPa

Therefore, the answer is A. 922.1 kPa.

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