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Consider the following cell with hydroge...

Consider the following cell with hydrogen electrodes at difference pressure `p_(1)` and `p_(2)`.

The `EMF` of the cell is given by

A

`(RT)/(F)ln.(p_(1))/(p_(2))`

B

`(RT)/(2F)ln.(p_(1))/(p_(2))`

C

`(RT)/(F)ln.(p_(2))/(p_(1))`

D

`(RT)/(2F)ln.(p_(2))/(p_(1))`

Text Solution

Verified by Experts

The correct Answer is:
b
`E_(cell)=0.059[pH_(a)-pH_(c)+(1)/(2).((p_(H_(2))))/((p_(H_(2)))_(c)]]`
`=0.059[0-0+(1)/(2)log `(p_(1))/(p_(2))]`
`=(0.059)/(2)log `(p_(1))/(p_(2))=(RT)/(2F)ln.(p_(1))/(p_(2))`
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