7. Latent Heat

Question 1

Latent Heat

Answer 1

Refers to the energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature. When a substances changes from solid to liquid, latent heat is absorbed (energy in) to weaken/bread the forces between the particles. When changing from a liquid to solid (freezing), latent heat is released (energy out), forming or strengthening forces between the particles.

Question 2

Types of Latent Heat

Answer 2

Question 3

Heating Curve

Answer 3

Question 4

Cooling Curve

Answer 4