Consider the following redox reaction:

The standard reduction potentials are given as below:

If the equilibrium constant of the above reaction is given as , then the value of (nearest integer)

Question

Consider the following redox reaction:

The standard reduction potentials are given as below:

If the equilibrium constant of the above reaction is given as , then the value of  (nearest integer)

Canvas Classes · Accepted Answer

Strategy:
 Use the relation between standard cell potential () and the equilibrium constant (): . Balance the redox reaction to find .

Step 1: Balance and find 
Reduction:  (Change is 5, × 2)
Oxidation:  (Change is 2, × 5)
Net electrons .

Step 2: Calculate

Step 3: Calculate log K

Nearest integer: 338.

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