Question

A closed flask contains water in all its three states, solids, liquid and vapour at $0^{o}C$. In this situation the average K.E. of the water molecule will be:

• A. maximum in vapour state
• B. maximum in solid state
• C. greater in the liquid than in vapour state
• D. same in all the three states

Answer 1

The correct option is D same in all the three states

In the three states of matter, the maximum kinetic energy is possessed by the gaseous molecules, so water vapour state has maximum kinetic energy in this situation.

So, option D is correct