NEET Chemistry Gibbs Free Energy Assertion Reason Question
Assertion (A): A reaction with positive ΔrH and positive ΔrS is spontaneous at high temperatures.
Reason (R): A positive ΔrS increases the Gibbs energy, making the reaction spontaneous at high temperatures.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
While a reaction with positive ΔrH and positive ΔrS is spontaneous at high temperatures, the reason given is incorrect. A positive ΔrS decreases the Gibbs energy at high temperatures, which is why the reaction becomes spontaneous.
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