Question

What will be the emf for the given cell?
Pt|H, (8, P.) H* (aq)|| H2 (8, P2)| Pt
(a)-Rt/f lnp1/p2
b-Rt/2f ln p1/p2
c-Rt/f ln p2/p1
d-none of these
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Answer 1

Answer:

I hope none of these I am not sure