Question

Explain why our palm feel cool when we put some acetone on it.

Answer 1

1. Evaporation is defined as the change of liquid into vapour at a temperature below the boiling point.
2. When we put some acetone on our palm, it evaporates. During evaporation, acetone particles absorb energy from the surface of the palm to compensate for the loss of energy. It makes the surroundings cool.