Question

Give the differences between evaporation and sublimation
​

Answer 1

Here’s ur answer mate

Answer 2

Answer :

Sublimation

Sublimation is the transition of solid phase into gaseous phase. During this phase transition, the matter does not go through a liquid phase. The solid directly turns into a gas. This reaction is an endothermic reaction since chemical bonds between molecules should be broken down in order to release them to air. Since energy is released when chemical bonds form energy should be given in order to break them. Therefore, it is endothermic. This energy is calculated as the enthalpy of sublimation.

Sublimation occurs at temperatures and pressures below the triple point of a substance. The triple point of a substance is the temperature and pressure in which the substance exists in all three phases (solid phase, liquid phase, and gaseous phase). Below the triple point, solid water sublimates, changing directly into a gas with a temperature increase, and never passing through the liquid phase.

Evaporation

Evaporation is the transition of liquid phase into gaseous phase. This is an endothermic process. The intermolecular forces between molecules in liquid should be broken down in order to form its vapor. This reaction requires energy. Therefore, it is an endothermic reaction. This is the opposite reaction of condensation. Evaporation is directly related to the temperature. When the temperature is increased, the rate of evaporation is also increased.

Evaporation of a liquid occurs on the surface of the liquid. The molecules near the surface of the liquid have a low amount of intermolecular forces compared to the molecules in the middle or bottom of the liquid. Therefore the molecules in the surface can be released easily. These molecules are the first to be converted into the gaseous phase.

Explanation:

follow me