Answer the following. When 1 mole \( \mathrm{NH}_{3} \) added to cathode compartment than emf of...

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Answer the following.
When 1 mole \( \mathrm{NH}_{3} \) added to cathode compartment than emf of cell is (at \( 298 \mathrm{~K} \) )
(A) \( 0.81 \mathrm{~V} \)
(B) \( 1.91 \mathrm{~V} \)
(C) \( 1.1 \mathrm{~V} \)
(D) \( 0.72 \mathrm{~V} \)
 
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