Question

Which of the following statements is true?

The boiling and condensation points of a substance are the same.
The melting and boiling points of a substance are the same.
The freezing and boiling points of a substance are the same.
The heat of fusion for a substance is the energy required to change from the vapor to plasma phase.

Answer 1

"The heat of fusion for a substance is the energy required to change from the vapor to plasma phase."

This I do belive is the answer to the question.

hope it helps.