F.4 Ch. 3 Check Concept - Change of State

The melting point and freezing point of a substance are usually the same.

• True

• False

When a solid melts into a liquid, its temperature decreases.

• True

• False

During melting of ice, heating is required to increase the kinetic energy of the ice molecules.

• True

• False

Latent heat is given out when water boils.

• True

• False

The internal energy of a substance always increases when it is heated.

• True

• False

Evaporation takes place at the surface of a liquid.

• True

• False

Evaporation does not involve latent heat of vaporization.

• True

• False

The rate of evaporation increases when the temperature of the liquid increases.

• True

• False