Question

The cell in which the following reaction takes place 2 Fe3+ (aq) + 2 I (ag) = 2Fe2+ (aq) + I2 (s) has E cell) = 0.
236v at 298k
calculate standard Gibbs energy.
Hint
∆G°= nF(E°cell)
=2× 96500×0.236
=-45548
=-4.55 x 10 J/mol.
why the value of n=2 is taken?!​

Answer 1

Answer:

n = 2 electrons

Explanation:

Because the no. of electrons involved in the reaction are only 2.

Each Fe+3 lost each electron that is gained by I-

so, 2 moles Fe+3 lost 2electrons.