Questions 1) and 2) refer to this situation: A macroscopic box is divided into t

Question

Questions 1) and 2) refer to this situation:
A macroscopic box is divided into two halves by a partition. Each half contains N gas molecules at the same pressure and temperature. Consider what happens to the entropy when the partition is removed.

If the two halves contain the same gas (e.g., both are oxygen), the entropy will:

decrease significantly.

remain almost the same (i.e., a reversible process).

increase significantly.

If the two halves contain different gases (e.g., oxygen and nitrogen), the entropy will:

decrease significantly.

remain almost the same (i.e., a reversible process).

increase significantly.

Explanation / Answer

If the two halves contain the same gas (e.g., both are oxygen), the entropy will:

Ans : (b)  remain almost the same (i.e., a reversible process).

If the two halves contain different gases (e.g., oxygen and nitrogen), the entropy will:

Ans : (c) increase significantly.

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