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Physics-(general)

NEET Physics (general) Assertion Reason Question

Type: Assertion Reason-assertion-Hard-Class 11

Assertion (A): The equilibrium constant K for a reaction is related to the standard free energy change ΔrG0\Delta_r G^0 of the reaction. | Reason (R): For exothermic reactions, both ΔrH0\Delta_r H^0 and ΔrG0\Delta_r G^0 are typically negative, leading to a large K.

A

Both A and R are true, and R is the correct explanation of A.

B

Both A and R are true, but R is not the correct explanation of A.

C

A is true, but R is false.

D

A is false.

Correct Answer

Option A

Detailed Explanation

Both statements are true. The relationship between ΔrG0\Delta_r G^0 and K is given by ΔrG0=−RTln⁡K\Delta_r G^0 = -RT \ln K. For exothermic reactions, ΔrH0\Delta_r H^0 and ΔrG0\Delta_r G^0 are likely negative, resulting in a large K.

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