Kinetic Theory of Matter - WS2 - L26 - PHY

What is latent heat?

• Heat released during a change of state.

• Heat absorbed during a change of state.

• Heat released or absorbed during a change of state.

• Heat created and destroyed during change of state.

Latent heat is used to change matter from one state to another while the remains constant.

• temperature
• time

• volume

• density

Describe when the latent heat of vaporisation is absorbed.

• When liquids change into solids.

• When solids change into liquids.

• When gases change into liquids.

• When liquids change into gases.

During _________, the latent heat of sublimation is released into the surroundings as a gas is converted into a solid.

• sublimation

• deposition
• animation

• sanitisation

Describe when the latent heat of fusion is released.

• When liquids change into solids.

• When solids change into liquids.

• When gases change into solids.

• When liquids change into gases.

Frost is an example of (a)   .

• deposition

• sublimation

• freezing

• condensation

Water droplets appearing on a glass window surrounded by steam is an example of (a)   .

• condensation

• freezing

• sublimation

• deposition

When a solid changes to a liquid, it goes through a process called (a)   . (1 Point)

• freezing

• melting

• condensation

• boiling

The freezing point of water is (a)   .

• 0K

• 371K

• 272K

• 273K

Describe when the latent heat of sublimation is absorbed.

• When liquids change into solids.

• When solids change into gases.

• When gases change into solids.

• When liquids change into gases.