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Chemistry Hard PPSC Uploaded: 04 Sep 2026

According to the second law of thermodynamics, entropy of an isolated system tends to:

  • A Remain constant
  • B Become zero
  • C Decrease
  • D Increase
Correct Answer: Option D — Increase
Explanation:
The second law of thermodynamics states that the entropy, or disorder, of an isolated system tends to increase over time, as natural processes move toward greater randomness and energy dispersal.
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