Q54 of 160 Page 36

Why does our palm feel cold when we put some acetone (or perfume) on it?

The particles gain energy from your palm or surroundings and evaporate causing the palm to feel cool. The heat energy equal to the latent heat of vaporization is absorbed from the body, leaving the body cool.


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(a) Define the term ‘latent heat of fusion’ of a solid. How much is the latent heat of fusion of ice?

(b) Draw a labeled diagram of the experimental set-up to study the latent heat of fusion of ice.