Question

the fusion is process in which
a) liquid change in to solid
b) solid change in to liquid
c)solid change in to gas
d)gases change in to solid ​

Answer 1

Key Points

Sublimation is an endothermic phase transition in which a solid evaporates to a gas.

Solids that sublimate have such high vapor pressures that heating leads to a substantial vaporization even before the melting point is reached.

The enthalpy of sublimation (also called heat of sublimation) can be calculated as the sum of the enthalpy of fusion and the enthalpy of vaporization.

Terms

depositionA phase transition in which a gas is converted to solid, without passing though an intermediate liquid phase. It is the reverse process of sublimation.

Triple pointIn thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) coexist in thermodynamic equilibrium.

sublimationThe process of transformation directly from the solid to the gaseous phase, without passing through an intermediate liquid phase.

Phase Transition: Solid to Gas

Sublimation is the process of transformation directly from the solid phase to the gaseous phase, without passing through an intermediate liquid phase. It is an endothermic phase transition that