Question

A redox reaction occurs between aluminum and chromium with the half-reactions shown. What can you conclude about the spontaneity of the reaction?

Al3+(aq) + 3e− ----> Al(s) Eº = −1.66 V
Cr(s) ----> Cr3+(aq) + 3e− Eº = +0.74 V

A. Nonspontaneous; Eº (cell) = +0.92 V
B. Spontaneous; Eº (cell) = −0.92 V
C. Nonspontaneous; Eº (cell) = −0.92 V
D. Spontaneous; Eº (cell) = +0.92 V

Answer 1

I'm pretty sure the answer is C right? @JFraser

Answer 2

it is

Answer 3

thank you so much!! :)