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Question: Answered & Verified by Expert
Assertion : Spontaneous process is an irreversible process and may be reversed by some external agency.
Reason : Decrease in enthalpy is a contributory factor for spontaneity.
ChemistryThermodynamics (C)
Options:
  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • C
    If the Assertion is correct but Reason is incorrect.
  • D
    If the Assertion is incorrect but the Reason is correct.
Solution:
2069 Upvotes Verified Answer
The correct answer is:
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
For spontaneous process, energy factor should be favorable means $\Delta H$ is $+$ ve and randomness should be positive.

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