NEET Physics Entropy MCQ Question
A diagram illustrates the diffusion process of two gases initially separated by a movable partition. After removal of the partition, the gases mix. Which label correctly represents the entropy change of the system during this process?
Entropy increases due to increased molecular disorder.
Entropy decreases as the gases form a uniform mixture.
Entropy remains constant because the system is closed.
Entropy decreases because the process is endothermic.
Correct Answer
Detailed Explanation
The removal of the partition allows the gases to mix, increasing molecular disorder and thus increasing entropy, as described in the discussion of gas diffusion in the NCERT context.
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