Question

the temperature of water is never 100 degree celsius in lakes, seas and rivers. how then does it change into vapours? why arent the lower layers hot?

Answer 1

which class are u in because their are different answer for different classs

Answer 2

Answer: The water gets converted into vapors due to a process called evaporation. Lower layers are not hot because they don't have much kinetic energy.

Explanation:

The water in lakes, seas and rivers are present in layers.

The upper layer is fully exposed to the sunlight and the particles of water gains kinetic energy due to increase in temperature. As, kinetic energy is directly proportional to the temperature.

As, the kinetic energy of the particles increases, some of the particles leaves the surface and gets converted into vapor state.

The process where, liquid phase gets converted into gas phase at any temperature is known as evaporation.

Hence, the water particles gets converted into vapors due to a process called evaporation. Lower layers are not hot because they don't have much kinetic energy.