Condensation takes place when the gaseous particles change themselves into a liquid state. It is an exothermic process. The gaseous particles have more heat than liquid. On losing heat, the temperature becomes lower than the boiling point. Hence, they change their state into liquid.
To a particular situation, gas particles have a sufficient temperature. When a gas cools down enough, the heat energy becomes lower. This decreases the motion of small invisible particles. Thereafter, particles start attracting each other come close together, therefore, forms a liquid.
Condensation is also called the reverse of evaporation. In the process of evaporation, tiny particle gains of heat follow the endothermic process Whereas in condensation, particles lose heat exothermic process takes place.
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Condensation as Exothermic Examples
Boiling Water: A most common example that justifies condensation as an exothermic process is steam vapours. When we boil water in the kitchen on a gas, initially, the temperature of the water is not high.
Steadily as the boiling point rises up, water particles evaporate at a faster rate. On covering the boiling vessel with a lid cover, We can easily see the water droplets on the bottom surface of the vessel lid. This is all because the reason water particles on grasping heat evaporate and strike the cover lid.
On striking particles instantly loses some heat, which clearly shows the exothermic process. The water droplets fall back in the boiling water then again repeat the process evaporate on striking the cover lid, loses heat forms droplets.
Ice Cubes in Tumblr: Another best example is chilled Tumbler justify condensation as an exothermic process. When we crush ice into small pieces and put them in a Tumbler fill it completely with ice cubes. After few seconds, you will start seeing tiny water droplets around the surface of the tumbler. This is all because the reason that water vapours in the air around the tumbler suddenly lowers the temperature when they come in outside contact.
To add on, water vapours outside the surface of the tumbler have more heat than the ice at zero degrees Celsius. water vapours change their state to tiny drops of liquid on a decrease of the kinetic energy of particles when coming in contact.
This clearly shows condensation is an exothermic process