States of Matter - Result Question 25
####25. A closed flask contains water in all its three states solid, liquid and vapour at $0^{\circ} C$. In this situation, the average kinetic energy of water molecules will be
(a) the greatest in all the three states
[1992]
(b) the greatest in vapour state
(c) the greatest in the liquid state
(d) the greatest in the solid state
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Solution:
- (b) In vapour state, the molecules are free to move with highest average kinetic energy.
