Question

what is the process where a solid changes to a gas without forming a liquid?
a. evaporation is the process where a solid changes to a gas without forming a liquid.
b. condensation is the process where a solid changes to a gas without forming a liquid.
c. sublimation is the process where a solid changes to a gas without forming a liquid.
d. deposition is the process where a solid changes to a gas without forming a liquid.

Explanation:

• Option A: Evaporation is the process of a liquid changing to a gas, so A is incorrect.
• Option B: Condensation is the process of a gas changing to a liquid, so B is incorrect.
• Option C: Sublimation is defined as the process where a solid directly changes to a gas without passing through the liquid state, so C is correct.
• Option D: Deposition is the process of a gas changing directly to a solid (the reverse of sublimation), so D is incorrect.

Answer:

C. Sublimation is the process where a solid changes to a gas without forming a liquid.