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The heat of reaction of a redox change i...

The heat of reaction of a redox change is `9.65 xx 10^(5)J`. If the same redox change is made in the working of cell showing cell efficiency `60%` and `emf` of `1.2 V`. What was the number of electrons involved in cell reaction?

Text Solution

Verified by Experts

The correct Answer is:
5
`eta = (Delta G)/(Delta H) = (nEF)/(Delta H)`
`0.6 = (n xx 1.2 xx 9.65 xx 10^(4))/(9.65 xx 10^(5))`
`n = (6)/(1.2) = 5`
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