Question

When somebody puts acetone (nail polish remover) on our hand, we experience a cooling sensation. 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 consumes heat energy from its surroundings and converts into vapour. Acetone has a low boiling point of ${56}^{\circ }$ $C$. So, when we put acetone in our hand, it evaporates by absorbing heat from the hand easily. Therefore, we feel cold.