Question

Sublimation is the process in which a solid changes directly into a gas.

• A. True
• B. False

Answer 1

The correct option is A True

1. The change of state of a substance in which a solid directly changes into the gaseous state is known as sublimation.
2. In sublimation, the particles of a substance move from being a very tightly packed solid to a very loosely packed gaseous state.
3. Vaporization of frozen carbon dioxide (dry ice) at ordinary atmospheric pressure and temperature is an example of sublimation.

Hence, the given statement is true.