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

Question

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

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

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - 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` .

4 views Answered 2023-02-05 15:29