Question

For a cell given below:

\[\ce{Ag | Ag+ || Cu^2+ | Cu}\]

\[\ce{Ag+ + e- -> Ag}\]; E° = x

\[\ce{Cu^2+ + 2e- -> Cu}\]; E° = y

\[\ce{E{^{\circ}_{cell}}}\] is ______.

विकल्प

• x + 2y

• 2x + y

• y − x

• y − 2x

Answer 1

\[\ce{E{^{\circ}_{cell}}}\] is y − x.

Explanation:

The standard cell potential is calculated using the relation:

\[\ce{E{^{\circ}_{cell}} = E{^{\circ}_{cathode}} - E{^{\circ}_{anode}}}\]

In this cell, the cathode is the Cu²⁺/Cu electrode with E° = y, and the anode is the Ag⁺/Ag electrode with E° = x.

Therefore, \[\ce{E{^{\circ}_{cell}} = y - x}\]