NEET Physics Entropy MCQ Question
Which of the following statements about entropy and internal energy is correct?
The change in internal energy is independent of the process type, while entropy can vary between reversible and irreversible processes.
Entropy is always constant for all processes regardless of reversibility.
Internal energy increases with an increase in entropy for all systems.
Entropy decreases when a gas expands irreversibly.
Correct Answer
Detailed Explanation
According to the NCERT context, the change in internal energy (∆U) does not discriminate between reversible and irreversible processes, while the change in entropy (∆S) does. This highlights the difference in behavior between these two thermodynamic quantities.
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