Question

When we put acetone (nail polish remover) on our hand, we feel cold. Why?

• A. Freezing of petrol on your hand.
• B. Evaporation of petrol.
• C. Boiling of petrol over your hand.
• D. Melting of petrol on your hand.

Answer 1

The correct option is B

Evaporation of petrol.

Evaporation causes cooling. The particles of a substance while evaporating consume heat energy from their surroundings and convert into vapour. Acetone has a low boiling point of ${56}^{\circ }$ $C$. So, when we put acetone on our hand, it evaporates by absorbing heat from the hand easily. Therefore, we feel cold.