13 Vapor pressure - Assessment

1.

Multiple Choice

30 sec

1 pt

Define a liquid.

Indefinite shape, indefinite volume

Definite shape, definite volume

Found in stars

Definite volume, indefinite shape

2.

Multiple Choice

30 sec

1 pt

Which statement describes the process occurring from beaker 1 to beaker 2?

Solid ice is changing into a gas.

Liquid water is changing to gas.

Solid ice is melting to liquid water.

Gaseous steam is condensing to solid ice.

3.

Multiple Choice

30 sec

1 pt

Which statement describes the energy transfer occurring from beaker 1 to beaker 2?

there is no energy transfer

energy is being produced

energy is being released

energy is being absorbed

4.

Multiple Choice

30 sec

1 pt

When the external pressure (atmospheric pressure) equals the the vapor pressure, a liquid will begin to...

Boil

Freeze

Condense

Melt

5.

Multiple Choice

30 sec

1 pt

When the evaporation rate equals the condensation rate, we have reached...

Vapor Pressure

Boiling Point

Freezing Point

Equilibrium

6.

Multiple Choice

30 sec

1 pt

The pressure of gas molecules above a liquid is known as the?

Vapor Pressure

External Pressure

Viscosity

Capillary Action

7.

Multiple Choice

30 sec

1 pt

These are the attractive forces that occur between molecules

intramolecular forces

electrostatic forces

intermolecular forces

ion-dipole forces

8.

Multiple Choice

30 sec

1 pt

During evaporation, which molecules will evaporate?

molecules with the least amount of kinetic energy

the largest molecules

the molecules farthest from the surface

molecules with enough kinetic energy to escape

9.

Multiple Choice

30 sec

1 pt

What happens to the rate of evaporation as a liquid is heated up?

it equals zero

it stays the same

it decreases

it increases

10.

Multiple Choice

30 sec

1 pt

When the temperature of matter increases the particles...

speed up and move closer

speed up and move farther apart

slow down and move closer together

slow down and move farther apart

11.

Multiple Choice

30 sec

1 pt

Liquids with weak intermolecular forces

contain a lot of kinetic energy

easily evaporate

cannot diffuse

freeze easily

12.

Multiple Choice

30 sec

1 pt

When you increase your altitude, the air pressure

increases

decreases

stays the same

13.

Multiple Choice

30 sec

1 pt

When you increase your altitude, the boiling point

decreases

increases

stays the same

14.

Multiple Choice

30 sec

1 pt

Normal boiling point is the temperature

where evaporation equals condensation.

where vapor pressure is equal to 1 atm ( or 101.3 kPa)

where liquid changes to solid

where vapor pressure is equal to 0.

15.

Multiple Choice

30 sec

1 pt

At what temperature do atoms stop moving?

0 °C

0 K

273 K

760 K

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