GENERAL KNOWLEDGE

Detailed explanation-1: -The molar heat of vaporization is the heat absorbed by one mole of that substance. When 1 mol of water vapor at 100°C condenses, 40.7 kJ of heat are released into the surroundings. The values of the heats of fusion and vaporization are related to the strength of the intermolecular forces.

Detailed explanation-2: -The amount of heat necessary to vaporize one mole of a given liquid is called its molar heat of vaporization (∆Hvap). The amount of heat released when 1 mol of vapor condenses at the normal boiling point is called its molar heat of condensation (∆Hcond).

Detailed explanation-3: -latent heat, also called the heat of vaporization, is the amount of energy necessary to change a liquid to a vapour at constant temperature and pressure.

Detailed explanation-4: -The molar heat of vaporization (Hvap) of a substance is the heat absorbed by one mole of that substance as it is converted from a liquid to a gas.

Detailed explanation-5: -Water has a heat of vaporization value of 40.65 kJ/mol. A considerable amount of heat energy (586 calories) is required to accomplish this change in water. This process occurs on the surface of water.