1.

For a thermodynamically reversible reaction in a galvanic cell at temperature T, which one of the following is false?

Answer»

`-Delta G = w_(max)`
`Delta G^@ = -RT lnK_c`
`Delta G= - FE_(cell)`
`Delta H = T Delta S `

Solution :Gibbs free energy change is equal to the maximum possible useful work that can be obtained from a process for a reversible change, hence, `- Delta G = W_(max_`
Electrical work done `= nFE_(cell)`
` therefore- Delta G = nFE_(cell)`
Gibbs energy for a reaction in which all reactants and products are in standard state, `Delta G^@`is RELATED to the EQUILIBRIUM constant as,
` Delta G^@- 0RT ln K_c`
when `Delta G^@`is ZERO, process does not occur.
` Delta G = Delta H -T Delta S = 0 , therefore Delta H = T Delta S`


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