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  • Smart Learning for All

  • Topic: Latent heat of vaporization.

  • Why do wet clothes feel cold?

  • Because, because.

  • I don't know.

  • It is because of latent heat of vaporization.

  • Latent heat of vaporization.

  • Is the amount of heat energy required to change a unit mass of liquid into vapor.

  • Now, the value of latent heat of vaporization of water is very high.

  • Is it higher than Mount Everest?

  • No.

  • The latent heat of vaporization of water.

  • Is about 22 point 6 times 10 to the fifth joules per kilogram.

  • This means it is smaller.

  • Please listen.

  • This means only 1 kilogram of water.

  • Requires 22 point 6 times 10 to the fifth joules of heat energy to change to vapor.

  • Now, when we wear wet clothes.

  • The water present in them absorbs quite a lot of latent heat from our body and evaporates into the atmosphere.

  • Making us feel cold.

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