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KT of Liquids Quiz

Total questions: 28

Worksheet time: 16mins

Name
Class
Date
1.
As the intermolecular forces of a liquid decrease, the vapor pressure will ___.
a)
Increase
b)
Decrease
c)
Stay the same
d)
I don't know
2.
Which state of matter do the particles have the least amount of kinetic energy?
a)
Gas
b)
Liquid
c)
Solid
d)
Plasma
3.
The temperature at which a substance actively changes from liquid to gas is the:
a)
Boiling point
b)
Evaporation point
c)
Condensation point
d)
Freezing point
4.
The normal boiling point of a liquid is the temperature at which a substance boils when the atmospheric pressure is equal to ___.
a)
Kelvin
b)
Vapor pressure
c)
Celsius
d)
Standard pressure
5.
The force exerted by particles in a closed container. It occurs above a liquid.
a)
Boiling pressure
b)
Vapor pressure
c)
Standard pressure
d)
Air pressure
6.
What term describes the point at which the rates of evaporation and condensation are equal in a closed system?
a)
Saturation
b)
Equilibrium
c)
Freezing point
d)
Boiling point
7.
Why is evaporation considered a cooling process?
a)
Because it increases the temperature of the remaining liquid.
b)
Because faster-moving (higher energy) particles escape, lowering the average energy of those left behind.
c)
Because it adds heat to the surrounding air.
d)
Because it condenses vapor into liquid.
8.
Which of the following best describes the motion of particles in a liquid according to the kinetic theory?
a)
Particles are tightly packed and do not move.
b)
Particles slide past each other and stay close due to intermolecular forces.
c)
Particles move freely without any attractions.
d)
Particles vibrate in fixed positions.
9.
Why do liquids evaporate even below their boiling point?
a)
Because they are boiling slowly.
b)
Because all particles in a liquid have the same kinetic energy.
c)
Because some surface particles have enough energy to overcome intermolecular forces.
d)
Because pressure forces them to evaporate.
10.
What happens to the average kinetic energy of a liquid as evaporation occurs?
a)
It decreases.
b)
It stays the same.
c)
It increases.
d)
It fluctuates randomly.
11.
How does atmospheric pressure affect boiling point?
a)
Higher pressure raises boiling point, lower pressure lowers it.
b)
Boiling point stays the same regardless of pressure.
c)
Boiling point only changes with volume.
d)
Atmospheric pressure causes condensation.
12.
How can you make a liquid boil without increasing its temperature?
a)
Add more liquid.
b)
Reduce the atmospheric pressure around it.
c)
Stir the liquid.
d)
Use a darker container.
13.
Which of the following statements about boiling and evaporation is true?
a)
Both occur only at the surface of a liquid.
b)
Boiling and evaporation require the same amount of energy.
c)
Boiling occurs throughout the liquid, evaporation only at the surface.
d)
Boiling requires less energy than evaporation
14.
Why does boiling point remain constant during the phase change from liquid to gas?
a)
The heat is lost to the environment.
b)
The energy is used to break intermolecular forces, not raise temperature.
c)
The liquid cools down as it boils.
d)
Evaporation stops during boiling.
15.
Which factor would increase the boiling point of a liquid?
a)
Increasing atmospheric pressure.
b)
Decreasing the volume of the liquid.
c)
Reducing the temperature.
d)
Stirring the liquid.
16.

The forces of IM attraction in a liquid are much greater than in a _________.

a)

solid

b)

gas

c)

other liquids

17.

The intermolecular (IM) forces of attraction keep the liquid particles

a)

far apart.

b)

at equal distance.

c)

close together.

18.

Particles in a liquid can
slide past each other
and have the ability to ________.

a)

flow

b)

explode

19.

Liquids are not easily compressed while gases are very compressible.

a)

True

b)

False

20.

Evaporation is the conversion of a liquid to a gas _______ the substance’s boiling point

a)

above

b)

below

c)

equal to

21.

In order to evaporate, a particle must have enough _____ to overcome the IM forces of attraction.

a)

KE

b)

strength

c)

water

d)

steam

22.

Heat flows from _________ objects.

a)

from cooler to warmer

b)

from warmer to cooler

c)

equally between warm and cool

23.

Two processes occurring at the same rate is known as _______.

a)

equilibrium

b)

power

c)

energy

d)

flow

24.

Boiling point is not constant; it depends on atm pressure!

a)

true

b)

false

25.

Particles are loosely packed. Can change position - has a definite volume, but takes the shape of its container.

a)

Bose-Einstein Condensate

b)

Solid

c)

Liquid

d)

Gas

e)

Plasma

26.

Adding heat to a liquid makes the particles move more quickly

a)

I agree with this statement

b)

I do not agree with this statement

c)

You cannot add heat to a liquid

27.

Temperature is the...

a)

Measure of the energy of the particles in matter

b)

The same as heat

c)

The transfer of energy between particles in matter

d)

....I'm not sure

28.

Which of the following best describes the kinetic theory of liquids?

a)

Particles are in fixed positions and vibrate in place.

b)

Particles move freely and fill the entire container.

c)

Particles are closely packed but can move past one another.

d)

Particles are ionized and conduct electricity.

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