Question

The process of conversion of a solid into a gas without undergoing its liquid state is called

• A. Evaporation
• B. Fusion
• C. Sublimation
• D. Condensation

Answer 1

The correct option is C

Sublimation

Explanation for the correct option(s):

Option C: Sublimation.

1. Sublimation is the conversion of a substance from the solid to the gaseous state without becoming liquid.
2. An example is the vaporization of frozen carbon dioxide (dry ice) at ordinary atmospheric pressure and temperature.

Explanation for the incorrect option(s):

Option A: Evaporation.

1. The process by which a substance changes from the liquid phase to the gaseous phase is known as evaporation.

Option B: Fusion

1. Fusion occurs when a substance changes from a solid to a liquid.

Option D: Condensation

1. The process by which a substance changes from the gaseous phase to the liquid phase is known as condensation.

Hence, option C is the correct answer.