Question

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Answer 1

At 100°C, the water is present in two states: Liquid and gases.

Liquid\rightleftharpoons GasLiquid⇌Gas

At this temperature, the water molecules get converted into vapor state. The energy of the vapor or steam particles is more than the water molecules although they are present at the same temperature because of the presence of Latent heat of vaporization.

Latent heat of vaporization is defined as the amount of energy required to convert a liquid into gas at constant temperature and pressure. This energy is hidden in the physical process.

Because of this heat, the particles of steam have more energy than water at same temperature

Answer 2

Water vapours at 100 degree Celsius has more energy than liquid water at 100 degree Celsius. ... Thus the total energy of steam is the sum of latent heat and kinetic energy whereas liquid water comprise of only kinetic energy. Hence, we can say that molecules of steam have higher energy than the molecules of liquid water.