Q87 · CSIR-NET Chemistry, June 2015

Paper: CSIR-NET June 2015 · Subject: Physical Chemistry · Chapter: Electrochemistry · Topic: Electrochemistry – General · Marks: 2 · Difficulty: Easy

The temperature-dependence of an electrochemical cell potential is

(a)$\frac{\Delta \mathrm{G}}{\mathrm{nFT}}$

(b)$\frac{\Delta \mathrm{H}}{\mathrm{nF}}$

(c)$\frac{\Delta \mathrm{S}}{\mathrm{nF}}$

(d)$\frac{\Delta \mathrm{S}}{\mathrm{nFT}}$

Answer

Answer: C ✓ checked by 4AB · confidence high

Explanation

(∂E/∂T)_P = ΔS/nF, since ΔG = −nFE and (∂ΔG/∂T)_P = −ΔS.

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