Question

Particles in steam at 100 degree Celsius (376k) have more energy than water at same temperature why

Answer 1

100 degree Celsius is the temperature at which the water converts into the gaseous form.

While converting it on the gaseous formed, the molecules of the water need to be move apart, since inter molecular force of the attraction among the gases is totally negligible, thus, a large amount of the energy is required for converting the water into the gas.

That energy in term of the physics is called as the Latent Heat of the Vaporization.

Its numerical value is 228000 J/kg.

In Chemistry that energy can be said as the Enthalpy of the Vaporization or Entropy of the Vaporization.

Both the terms have there special significance in the respective field of the Thermodynamics.

Thus, we can say that Water at 100 degree Celsius have lower energy then steam at the same temperature.

Hope it helps .

Answer 2

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

• 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.