JEE Main 2022 — Electrochemistry Question with Solution
From: JEE Main 2022 (Online) 27th June Evening Shift
Question
For the reaction taking place in the cell :
Pt (s)| H2 (g)|H+(aq) || Ag+(aq) |Ag (s)
E = + 0.5332 V.
The value of fG is ______________ kJ mol1. (in nearest integer)
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Show full solutionCorrect answer: 2
Step-by-step explanation
# At anode, oxidation occur
H2 2H+ + 2e ....... (1)
# At cathode, reduction occur
2Ag+ + 2e 2Ag ...... (2)
Adding equation (1) and (2), we get n = 2, where n = cancelled out electron
Now,
kJ/mol
kJ/mol
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