Question

c) Evaporation causes cooling :-
When a liquid evaporates, the particles of the liquid absorb heat
from the surroundings and evaporates. So the surroundings become
cold.
Eg :- People sprinkle water on the roof or open ground because
during evaporation water absorbs heat makes the hot surface cool.
During summer we sweat more because during evaporation the
sweat absorbs heat from our body making the body cool.
Wearing cotton clothes in summer keeps us cool because cotton
absorbs sweat and when the sweat evaporates it absorbs heat from our
body making the body cool

Answer 1

Answer:

c) Evaporation causes cooling :-

When a liquid evaporates, the particles of the liquid absorb heat

from the surroundings and evaporates. So the surroundings become

cold.

Eg :- People sprinkle water on the roof or open ground because

during evaporation water absorbs heat makes the hot surface cool.

During summer we sweat more because during evaporation the

sweat absorbs heat from our body making the body cool.

Wearing cotton clothes in summer keeps us cool because cotton

absorbs sweat and when the sweat evaporates it absorbs heat from our

body making the body cool

Answer 2

Answer:

In all of these processes, the particles or molecules of liquid absorb the heat and when it reaches Latent Heat of vapourization, then evaporates and this heat or energy is absorbed from surrounding thus making the surrounding cool.

Thus, the process of evaporation causes cooling.