Cell reaction is spontaneous when

Cell Reaction Is Spontaneous When Chemistry Question

Cell reaction is spontaneous when

Options

(a) ΔG⁰ is negative
(b) ΔG⁰ is positive
(c) ΔE⁰ Red is positive
(d) ΔE⁰Red is negetive

Correct Answer:

ΔG⁰ is negative

Explanation:

For a cell reaction to be spontaneous ΔG⁰ should be negative.
As ΔG⁰ = -nFE⁰, so the value will be -ve only when E⁰ is +ve.
n = no.of electrons involved, F = value of faraday’s constant.

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Topics: Thermodynamics (179)
Subject: Chemistry (2512)

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