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Compute the standard free energy chagne ...

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.

Text Solution

Verified by Experts

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