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

 

Answer

Acetone, perfume and petrol are volatile substances, i.e., substances which turn into vapours very easily. 

Hence, when we put either of the substances on our palm, it immediately takes the latent heat of vaporization from our palm to turn into vapours. 

Since some amount of heat is suddenly taken from our palm, the palm feels cold. 

  1. Class 9
  2. Chapter 1 Class 9 - Matter In Our Surroundings

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.