6
AssignmentMultiple Choice

Heat

Question 6 • *25-26 KCS18 Chemistry IC

Which of the following is true of the relationships between heat of fusion and heat of vaporization?

Answer
A
Using the heat of fusion, you can predict the heat of vaporization.
B
The heat of vaporization is typically larger than the heat of fusion.
C
The heat of vaporization is typically less than the heat of fusion.
D
The heat of vaporization is equal to the heat of fusion.

Explanation

Heat of fusion is the energy needed to change a solid into a liquid, while heat of vaporization is the energy needed to change a liquid into a gas. Vaporization typically requires more energy because particles must separate much farther, overcoming most of the attractions between them. Therefore, the heat of vaporization is typically larger than the heat of fusion.

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