Question

During the evaporation of liquid

• A. the temperature of the liquid will rise
• B. the temperature of the liquid will fall
• C. may rise or fall depending on the nature
• D. the temperature remains unaffected

Answer 1

Answer: (B)

the temperature of the liquid will fall

Answer 2

During evaporation/molecules having high energy leave the surface of liquid. As a result average kinetic energy of liquid decreases. $KE\propto T$ $\therefore$ Temperature of liquid falls.