Question
Distinguish between evaporation and condensation.
Solution
i. Evaporation : It is the process by which water is transformed from liquid to gaseous form. It occurs whenever energy is transported to an evaporated surface and temperature rises. The molecules become more mobile and overcome the force binding then to the water surface and break away, resulting in evaporation.
ii. Condensation is the process by which atmospheric water vapour changes into water or ice crystals. It is just reverse of the process of evaporation. When the temperature of saturated air falls below dew point the air cannot hold the extra amount of humidity. This extra amount of humidity changes into water droplets depending upon the temperature at which condensation takes place.
ii. Condensation is the process by which atmospheric water vapour changes into water or ice crystals. It is just reverse of the process of evaporation. When the temperature of saturated air falls below dew point the air cannot hold the extra amount of humidity. This extra amount of humidity changes into water droplets depending upon the temperature at which condensation takes place.
