Test:351 QNo:14

The standard electrode potentials of A²⁺|A and A²⁺|A⁺ are x and y volts respectively. The standard electrode potential of A⁺|A is

3 Answers

consider
A²⁺+2e ->A (x volts)
A²⁺+e ->A⁺ (y volts)

Subtracting,
A⁺+e -> A (x-y)

So why is x-y wrong?
The answer is given as 2x-y

1357

Manish Shankar ·2009-04-22 04:15:00

A²⁺â†’A+2e^- E=x; Î”G=-2Fx
A²⁺â†’A⁺+e^- E=y; Î”G=-Fy

subtracting second from first gives the equation
A⁺â†’A+e^- Î”G=-2Fx+Fy
E=2x-y

Sir but how did u get 2fx and fy?Why should we use them?

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