1.

Consider the following cell with hydrogen electrodes at difference pressure `p_(1)` and `p_(2)`. The `EMF` of the cell is given byA. `(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))`

Answer» Correct Answer - 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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