Question

does the surrounding air becomes warm or cool when vapour phase of water condenses?explain

Answer 1

Gases have more higher energy than liquids and solids. When a vapour condenses it changes from gas to liquid. Therefore there is a drop in energy. This energy has to go (somewhere) to the surroundings. So surrounding air warm when vapour phase h2o (water)condenses.

Answer 2

The varpour phase of water at 100° C has more energy than liquid phase of water at 100° C. This is called the latent heat of vaporization. This is the internal heat that water absorbs before becoming vapor.

When water vapour is condensed by hitting the walls of a container or otherwise, the latent heat is released and the vapour becomes water. This heat energy heats the surrounding air if there is no thermal insulation.

Water cools from 100° C due to surrounding temperature being less than 100° C and heat being transferred to the surroundings.