Question

predict whether the following reaction becomes spontaneous at 298 K.
Co + (Fe+2) -----> (Co+2) + Fe
E°(Fe+2/Fe)= -0.44V
E°(Co/Co+2)= 0.28V
Fe+2 =0.68M and Co+2= 0.15M

Answer 1

Reaction is spontaneous
Since the reduction potential of the cell is positive.