Question

Heat of ______ is the energy needed for a substance to change from a liquid to a gas

Answer 1

Answer:

$\boxed {\boxed {\sf Heat \ of \ vaporization}}$

Explanation:

There are two options for this answer: heat of fusion or heat of vaporization.

Let's define both of the terms.

Heat of fusion:

• The amount of heat needed to change a substance from a solid to a liquid.

Heat of vaporization:

• The amount of heat required to change a substance from a liquid to a gas.

The question asks us which type of heat provides the energy for the phase change of a liquid to a gas. Therefore, the correct answer is heat of vaporization.

Answer 2

Answer:

Heat of vaporization

Explanation:

When water is at high levels of temperature heat is move as an energy source into the air.