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Calculate the standard free energy chang...

Calculate the standard free energy change for the reaction , `2 Ag + 2 H^(+) to H_(2) + 2 Ag^(+)` ,
`E^(@)` for `Ag^(+) + e^(-) to Ag` is 0.80 V

A

`+ 154.4` kJ

B

`+ 308.8` kJ

C

`-154.4 ` kJ

D

`-308.8` kJ

Text Solution

Verified by Experts

The correct Answer is:
C
For the given reaction `E_(cell)^(@) = -0.80` V
`Delta G^(@) = -n F E_(cell)^(@)`
= `-2 xx 96500 xx (-0.80) J = 154.4 kJ` .
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