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Question: Answered & Verified by Expert
Assertion : Entropy of system increases for a spontaneous reaction.
Reason : Enthalpy of reaction always decreases for spontaneous reaction.
ChemistryThermodynamics (C)AIIMSAIIMS 2013
Options:
  • A If both assertion and reason are true and reason is the correct explanation of assertion.
  • B If both assertion and reason are true but reason is not the correct explanation of assertion.
  • C If assertion is true but reason is false.
  • D If both assertion and reason are false.
Solution:
1395 Upvotes Verified Answer
The correct answer is: If both assertion and reason are true and reason is the correct explanation of assertion.
(a) : $\Delta S$ is + ve and $\Delta H$ is - ve for a spontaneous reaction at all temperatures.

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