Heat of sublimation can be approximated by adding together ________ and ________.
A)heat of fusion, heat of condensation
B)heat of fusion, heat of vaporization
C)heat of freezing (solidification), heat of condensation
D)heat of freezing (solidification), heat of vaporization
E)heat of deposition, heat of vaporization

Question

Quizplus · Accepted Answer

The heat of sublimation is the energy required to change a substance from solid to gas phase directly. This process can be thought of as occurring in two steps: first, the solid melts to a liquid (heat of fusion), and then the liquid vaporizes to a gas (heat of vaporization). Adding the heat of fusion and the heat of vaporization gives an approximation of the heat of sublimation.

Heat of Sublimation Can Be Approximated by Adding Together ________