Question

the molar heat of sublimation is equal to

Answer 1

the molar heat of sublimation is the amount of energy that must be added to a mole of solid at constant pressure to turn it directly into gas

Answer 2

Answer:

Molar heat of fusion and vaporization

Explanation:

The amount of energy required to convert a solid at constant value of pressure directly into gas phase without going into the liquid phase is called as sublimation molar heat. It is denoted as $\Delta H_sub$ when we combine the value of vaporization and fusion molar heat, we get molar heat of sublimation.

Thus, it is considered as equal to vaporization and fusion molar heat. It is expressed as

$\Delta H_{s u b}=\Delta H_{f u s}+\Delta H_{v a p}$