Chemistry-(general)
NEET Chemistry (general) MCQ Question
Type: MCQ-numerical-Hard-Class 12
Calculate the standard Gibbs energy change (ΔrG°) for the reaction: Cu(s) + 2Ag⁺(aq) → Cu²⁺(aq) + 2Ag(s), given that E°cell = 0.46 V and n = 2.
A
-88.6 kJ/mol
B
-44.3 kJ/mol
C
88.6 kJ/mol
D
44.3 kJ/mol
Correct Answer
Option A
Detailed Explanation
Using ΔrG° = -nFE°cell, where n = 2, F = 96485 C/mol, E°cell = 0.46 V, ΔrG° = -2 * 96485 * 0.46 = -88.6 kJ/mol.
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