why does lowered air pressure allow water to boil at room temperature

Answers

Answer 1

Answer:

As ambient air pressure decreases, molecules evaporating from a boiling liquid meet less resistance from air molecules and enter the air more easily. Because the vapor pressure can be reduced, the temperature needed to boil the liquid is also reduced.

Explanation:

Answer 2

Answer:

Less force pushes down on the liquid, making it easier for gas to escape.

Explanation:

I hope this helps and have a great day!


Related Questions

microwave ovens emit microwave energy with a wavelength of 12.5 cm. what is the energy of exactly one photon of this microwave radiation?

Answers

Answer:

1.5891x10^-24

hope this helped :)

What do you think will happen to current if we increase or decrease the resistance of the connecting wire?​

Answers

Answer:

If resistance is increased, the current decreases and if the resistance is decreased, the current flowing through the wire increases.

Explanation:

V = IR is ohm's law which implies I = V/R, where I is the current and V is the voltage and R is the resistance. Hence, I is inversely proportional to R.

Can someone please give me the answers to this? ... please ...

Answers

Answer:

See below:

Explanation:

What you have done seems to be correct, what we can do is just add a box into the center. For the 3rd question, we can just draw a box as nothing is happening. That is all!

Consider marking as brainliest if it helped!

Answer:

Explanation:

good luck

i think

a particle traveling around a circle at constant speed will not experience an acceleration.

Answers

The answer would be false

Can someone help me pls

Sorry if the photo is rubbish

Answers

Answer:

F

Explanation:

F is not a molecule, a molecule contains two or more cells. But F stands for fluorine, which I think is a singular cell.

write the importance of international Bureu of weights and Measures in the country.​

Answers

Answer:

International Bureau of Weights and Measures (BIPM), French Bureau International des Poids et Mesures, international organization founded to bring about the unification of measurement systems, to establish and preserve fundamental international standards and prototypes, to verify national standards, and to determine fundamental physical constants. The bureau was established by a convention signed in Paris on May 20, 1875, effective January 1876. In 1921 a modified convention was signed.

Given the following velocity time graph of 7kg object what is the impulse during segment c (from35 to 55 seconds)

Answers

Answer:

9,11 N.s.,.................

If you ran at an average speed of 8 m/s, how long would it take you to run 200 meters?

Answers

It would take 25 seconds.

200/8 = 25

Dùng công thức gia tốc trọng trường g =GM/R^2 . Tìm gia tốc trọng trường gH trên sao Hỏabiết khối lượng sao Hỏa bằng 0,5325 bán kính Trái Đất, theo đơn vị m/s^2 . Biết gia tốc trọng trường Trái Đất gTĐ =9,8 m/s^2 .
A. 1,204
B. 0,305
C. 3,712
D. 6,218

Answers

The answer is C: 3,712

Convert: 8 mm: ____________ cm

Answers

-1^10

centi=10 mm and mm=1/10=10^-1 cm

How much must an object weigh to be able to float in water?
1: more than the amount of water it displaces
2: less than the amount of water it displaces
3: more than a gram
4: less than a gram

Answers

Answer:

less than one gram

Explanation:

big brain

Answer:

less than a gram

Explanation:

because yes

A ball is thrown straight up from the ground with an unknown velocity. It returns to the ground after 4.0 s. With what velocity did it leave the ground?

Answers

Answer:

It must return at the same velocity with which it was thrown or else there would be a preferred direction of motion leading to perpetual motion.

a = (v2 - v1) / t = (v2 - 0) / 2 = v2 / 2    for a falling object

v2 = 2 a = 2 sec * 9.8 m/sec^2 = 19.6 m/s

You can check with

H = V0 t - 1/2 g t^2      (V0 and g are in different directions)

H = 0

V0 = 1/2 g * 4 = 19.6 m/s

a bus starts to move from rest. if its velocity becomes 90 km per hour after 8s second. calculate acceleraton​


answer is 3.13ms-2

Answers

90 km per hour = 25 metres per second

[tex]a=\frac{v-u}{t}[/tex]

[tex]a=\frac{25-0}{8}[/tex]

[tex]a=3,13m/s^2[/tex]

How would these two particle diagrams be classified?

A-) Both are pure substances each containing one type of compound

B-)Both are pure substances containing a mixture of elements

C-) Both are mixtures containing different types of compounds

D-) Both are mixtures containing more than one element

Answers

Answer:

A-) Both are pure substances each containing one type of compound

un auto recorre 212 km en un tiempo de 3.1 h.Calcular su rapidez en m/s

Answers

Para hacerlo a m/s un método muy práctico es sólo dividir entre 3.6, por cuestiones de conversiones, lo puedes comprobar.

212 km/hr /3.6 = 58 m/s

Comprobación :

V= d / t

V= 212 m / 18000 seg <---- nota que aquí los segundos son de las 3.1hrs  

V= 58 m/seg

How does the law of conservation of mass apply to this reaction: Mg + HCI + H2 MgClz?
O The equation needs to be balanced. There are fewer hydrogen atoms in the equation than magnesium or chlorine.
© Only the hydrogen needs to be balanced. There are equal numbers of magnesium and chiorine.
Hydrogen and chlorine need to be balanced. There is an equal amount of magnesium on each side
©
The
law of conservation of nÖss has already been
the equation.
applied. There is an equal number of each element on both sides of

Answers

It’s the first answer - ie the equation needs to be balanced.

You can’t just look at the individual elements. To balance the equation, Magnesium will be part of the balancing and hence you will be adding Magnesium to both sides of the equation etc

Andy took a bus and then walked from his home to downtown. For the first 1.6 hour, the bus drove at an average speed of (15km)/(h). For the next 0.4 hours, he walked at an average speed of (4.5km)/(h). What was the average speed for the whole journey?

Answers

Answer:

240

Explanation:

(pls help me) Which event is an example of melting? A. Wax drips down the side of a lit candle. O B. Perspiration dries on a person's skin. O C. Rain turns to ice pellets. O D. A mirror fogs up when someone takes a hot shower.​

Answers

Answer:

A. is correct thanks for sharing your question

cho mạch như hình vẽ E
=
24
V
,

r
=
1
Ω

,

R
1
=
3
Ω
,

R
2
=
R
3
=
R
4
=
6
Ω

Answers

Answer:

A

Explanation:

If a 160W light bulb consumes 1000J of electrical energy in a given time, then in the same time interval, how much energy will a 40W light bulb consume?


Answers

160w/4 = 40w
1000J/ 4= 250J
a 40w light bulb will consume 250J

Answer:250J

Explanation:

160*t=1000

40* 1000/160= 250

A projectile is shot on level ground with a
horizontal velocity of 17 m/s and a vertical
velocity of 34 m/s.


-Find the time the projectile is in the air.
The acceleration due to gravity is 9.8 m/s2.
Answer in units of s.
-Find range R.
Answer in units of m.

Answers

Answer:

time rising = 34 / 9.8 = 3.47 sec

total time in air = 2 * 3.47 sec = 6.94 sec

(time rising must equal time falling)

R = 17 m/s * 6.94 s = 118 m

Can also use range formula

R = v^2 sin (2 theta) / g

tan theta = 34 / 17 = 2

theta = 63.4 deg

2 theta = 126.9 deg

sin 126.9 = .8

v^2 = 17^2 + 34^2 = 1445 m^2/s^2

R = 1445 * .8 / 9.8 = 118 m    agreeing with answer found above

Why did explorers want to find a way accross the North American continent

Answers

Answer:

The Desire for New Trade Routes

Extra:

European explorers found the New World by mistake; they were not looking to find new continents but new sea routes. Europeans mainly wanted to find better trade routes to China, India, and Southeast Asia.

please give brainliest if possible

Trên bóng đèn có ghi là 12v -6w. Khi đèn sáng bình thường thì dòng điện chạy qua đèn có cường độ là

Answers

Answer:

I=P/U=6/12=0.5(A)

Explanation: P=UI ( CÔNG SUẤT = HIỆU ĐIỆN THẾ NHÂN VỚI C Đ D Đ)

Please help me to solve this question .​

Answers

Answer:

P1 = momentum before collision = .5 kg * .32 m/s = .16 kg-m/s

Momentum is conserved

P1 = P2 = V * (M + m) = .16 kg-m/sec

V = .16 kg-m/sec / (.5 kg + .3 kg) = .2 m/sec


True or False: the longer the hail stone is
kicked around by updrafts the larger it
gets.

Answers

こんにちは人々

False‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ 

Which of the following would require more energy to heat it from 10°C to 20°C?
a. 200 kg of water
b. 200 kg of aluminum
C. 100 kg of steel​

Answers

Answer:200kg of water

Explanation:

I need help asap please
Will give BRAINLIST for correct answers only
Thank you

A force of 225 N at an angle of 30 degrees to the horizontal displacement. The component of the force that will cause work to be done is?

Answers

Answer:

225√3 N

Explanation:

225√3 N

what makes it difficult to see Mercury​

Answers

Answer:

Mercury is the planet nearest the Sun and is the most difficult to observe, because it is always quite close to the Sun in the sky. Because of its orbital motion, it appears to swing back and forth around the Sun, reaching a maximum angular distance of about 28°.

Explanation:

I hope that helps you

Answer:

Mercury is very close to the Sun which means its hard to see the planet without the Sun's brightness outshining it. It is also the smallest planet in the solar system.

Hope this helps!

if the electron affinity for an element is a negative number, does it mean that the anion of the element is more stable than the neutral atom?

Answers

No, the anion of the element is more stable than the neutral atom but an electron in an atom or ion is lower in energy than a free electron.

We know that,

Kinetic energy is defined as the energy of the object that occurs due to the motion of the object. The total work needed by the body to starts accelerating it by the help of given mass which is supplied from the rest position and its mentioned velocity.

The energy body gets due to the process of acceleration by this the body will able to main the kinetic energy of the body without changing the speed of the body.

The energy which has been stored in the body or any object by the help of the particular position or the proper arrangement of the parts is known as potential energy.

There will be no effect of the outside environment on the potential energy that present inside the body.

The kinetic energy decrease or increase with change into the velocity.

Therefore, No, the anion of the element is more stable than the neutral atom but an electron in an atom or ion is lower in energy than a free electron.

Learn more about kinetic energy here:

brainly.com/question/12669551

#SPJ12

15. A boy on board a cruise ship drops a 30.0 gram marble into the ocean. If the resistive force proportionality
constant is 0.50 kg/s, what is the terminal speed of the marble in m/s?

a. 0.06
b. 0.294
c.0.588
d. 60.0
e. 588.0

Answers

Answer
I could be wrong but I’m pretty sure it’s C
Explanation
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