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Topic: Cell potential and Gibbs energy· Redox Reactions and Electrochemistry

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R :Assertion A : In equation Δ_r G = -nFE_cell, value of Δ_r G depends on n.Reasons R : E_cell is an intensive property and Δ_r G is an extensive prop…

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R :

Assertion A : In equation \(\Delta_r G = -nFE_{cell}\), value of \(\Delta_r G\) depends on n.

Reasons R : \(E_{cell}\) is an intensive property and \(\Delta_r G\) is an extensive property.

In the light of the above statements, choose the correct answer from the options given below :

1. A is false but R is true.

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

3. Both A and R are true and R is NOT the correct explanation of A.

4. A is true but R is false.

1 answer

Best answer

Answer: 2. Both A and R are true and R is the correct explanation of A.

Key idea: \(\Delta_rG = -nFE_{cell}\) links an extensive quantity to an intensive one through n.

A is true: \(\Delta_rG\) is proportional to n, the moles of electrons transferred. R is true: \(E_{cell}\) does not depend on the amount, while \(\Delta_rG\) does. Because \(E_{cell}\) is fixed, \(\Delta_rG\) scales with n precisely since it is extensive. So R explains A: option 2.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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