JEE Main · ChemistryMedium
For a reaction at , the enthalpy change is and the entropy change is . Calculate the Gibbs free energy change and determine the spontaneity of the reaction.
- A., spontaneous
- B., non-spontaneous
- C., spontaneous
- D., non-spontaneous
Show correct answer & step-by-step solution
Correct answer: D — , non-spontaneous
Solution
- Use the formula .
- Convert units: .
- Calculate .
- Since , the reaction is non-spontaneous.
- Hence the answer is (D).
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