Which of the following correctly represents Nernst equation?
[ P = products : R = reactants ]

Options

A. `DeltaG = DeltaG^(@)+2.303RTlog""([P])/([R])`
B. `DeltaG = DeltaG^(@)-2.303RTlog""([P])/([R])`
C. `DeltaG^(@) = DeltaG+2.303RTlog""([R])/([P])`
D. `DeltaG^(@) = DeltaG^(@)-2.303RTlog""([R])/([P])`

Answer

A, C

Explanation

Nernst equation is
`E_(cell)=E^(@)""_(cell)-(2.303 RT)/(nF) log "" ([P])/([R])`
`Delta G = - nFE_(cell.)DeltaG^(@)= - nEF^(@)""_(cell)`
`Delta G = DeltaG^(@)+2.303RT log ""([P])/([R])`
`Delta G^(@) = DeltaG+2.303RT log ""([R])/([P])`