In which of the following scenarios would the entropy of the system decrease?

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Question: In which of the following scenarios would the entropy of the system decrease?

Options:

Correct Answer: Gas compressing

Solution:

When a gas is compressed, the number of microstates decreases, leading to a decrease in entropy.

In which of the following scenarios would the entropy of the system decrease?

In which of the following scenarios would the entropy of the system decrease?

Step 1: Understand what entropy is. Entropy is a measure of disorder or randomness in a system.
Step 2: Recognize that gases have a lot of microstates, which are different ways the particles can be arranged.
Step 3: When a gas is compressed, the space it occupies becomes smaller.
Step 4: With less space, there are fewer ways (microstates) for the gas particles to be arranged.
Step 5: Since the number of microstates decreases, the disorder of the system also decreases.
Step 6: Therefore, when a gas is compressed, the entropy of the system decreases.

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