what is latent heat of Vaporisation​

Answers 2

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Explanation:“The amount of heat that is needed to convert a unit mass of liquid substance into a gaseous phase at constant temperature conditions is known as latent heat of vaporization.

example:For example, when a pot of water is kept boiling, the temperature remains at 100 °C (212 °F) until the last drop evaporates, because all the heat being added to the liquid is absorbed as latent heat of vaporization and carried away by the escaping vapour molecules.

Answer:

Explanation:

The physical state pathway (gas-->liquid-->solid) occurs when there is sufficient energy to overcome the rigid structure of solids and disperse their molecules. When the molecules are relatively dispersed the substance changes to a liquid phase. The intermolecular spaces between liquid molecules are relatively larger than that of solids.

Some of the latent heat units:

  • Joules per gram (J/g) or kilojoules per kilogram (kJ/kg).
  • Calories per gram (cal/g) or kilocalories per kilogram (kcal/kg).
  • British thermal unit per pound (BTU/lbs).

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