In a cell, the following reactions take place:

The standard electrode potential for the spontaneous reaction in the cell is at 298 K. The value of x is (Nearest Integer)

Question

In a cell, the following reactions take place:

The standard electrode potential for the spontaneous reaction in the cell is  at 298 K. The value of x is  (Nearest Integer)

Canvas Classes · Accepted Answer

Strategy:
 Spontaneous reaction occurs when the cell  is positive. Compare the standard reduction potentials to determine which species is reduced (cathode) and which is oxidized (anode).

Step 1: Compare potentials
-  (Stronger oxidizer)
-

Step 2: Determine cathode and anode
Cathode: 
Anode:

Step 3: Format the result
.

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