Question

The entropy of water vapour is more than that of water. Why?

Answer 1

because of evaporation take place in hot are cold conditions

Answer 2

The entropy of water vapour is more than that of water because :

Entropy is the degree of randomness or disorder in matter.

In gases [ water vapor] kinetic greenery of particles is more and the inter molecular space is also more than solids and liquids.

so gas particles move randomly with greater energy.

Hence  Entropy [s] is in the following order

Sgas >Sliquid >Ssolid