Compute the standard free energy chagne `(DeltaG^(@))` for the process `Zn^(2+)(aq)+2e^(-)rarrZn(s)`: `E^(@)Zn^(2+)=-0.76V`

Question

Compute the standard free energy chagne `(DeltaG^(@))` for the process `Zn^(2+)(aq)+2e^(-)rarrZn(s)`: `E^(@)Zn^(2+)=-0.76V`

Compute the standard free energy chagne `(DeltaG^(@))` for the process
`Zn^(2+)(aq)+2e^(-)rarrZn(s)`:
`E^(@)Zn^(2+)=-0.76V`
A. 146.68kJ
B. 73.34kJ
C. 220.2kJ
D. 1100kJ.

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 - A
`E_("Cell")^(@)=E_("red")^(@)E_("red")^(@)`
`=E_(Ag)^(@)+//Ag-E^(@)Cu^(2+)//Cu`
`0.8-(+0.34)=+0.46V`

4 views Answered 2023-02-05 15:29