Question

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

(a) -ΔG = Wmax
(b) ΔG⁰ = -RT ln K
(c) ΔG = – n F Ecell
(d) ΔH =TΔS

Answer 1

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

1. -ΔG = Wmax
2. ΔG⁰ = -RT ln K
3. ΔG = – n F Ecell
4. ΔH = TΔS

Explanation

We know that : –ΔG = W(max)

Electrical work done = nFE(cell)

Therefore

• -ΔG = nFE(cell).

E⁰(cell) = RT/nF ln K(c)

Therefore

-ΔG = nF RT/nF ln K(c) = RT lnK(c)

or

ΔG⁰ = -RT ln K(c)

When ΔG is zero, process does not occur.

ΔG = ΔH - TΔS = 0

Therefore, ΔH = TΔS

Option D is correct

Answer 2

Answer:

Option D is correct answer

Explanation:

Hope this help you