AP Physics 2mediummcq1 pt

Which of the following processes results in an increase in entropy?

A.D) Formation of a crystal from a liquid

B.A) Freezing of water at 0°C

C.B) Compression of an ideal gas at constant temperature

D.C) Mixing of two different gases

Explanation

Core Concept

Entropy is a measure of disorder or randomness. Mixing two different gases increases the disorder of the system, thus increasing entropy. Freezing, compression at constant temperature, and crystal formation all tend to decrease disorder and thus decrease entropy.

Correct Answer

DC) Mixing of two different gases

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