Question

During evaporation process the heat is i) absorbed ii) evolved iii) first absorbed then evolve iv) initially evolved and then absorbed

Answer 1

Absorbed.

Heat is been transferred from hot to cold liquid to get the energy to convert liquit to vapour state.

So the heat is absorbed by the liquid that is being vaporising

Answer 2

Answer:

iii) first absorbed then evolve

Explanation:

• Evaporation takes place when the particles present on the liquid surface acquire more kinetic energy by absorbing heat from the surroundings.
• These particles escape from the force of attraction of other particles and get converted into the vapor phase.
• Thus, during the evaporation process the heat is first absorbed and then evolved.

Therefore, the answer will be

During the evaporation process, the heat is first absorbed and then evolved.