Question:

Which of the following reactions are endothermic and spontaneous?

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Check both the enthalpy and entropy changes for the spontaneity and nature of the reaction.
Updated On: May 9, 2025
  • (ii) only
  • (ii), (v) only
  • (iii), (v) only
  • (iii), (v)
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The Correct Option is B

Solution and Explanation

An endothermic reaction absorbs heat, while a spontaneous reaction proceeds without the need for external influence. The reactions in (ii) and (v) are both endothermic and spontaneous based on the enthalpy and entropy changes, making them the correct choice.
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