contestada

Which shows the correct relationship?

A. E°cell > 0 = nonspontaneous reaction
B. E°cell > 0 = spontaneous reaction
C. E°cell = 0 = nonspontaneous reaction
D. E°cell < 0 = spontaneous reaction

Respuesta :

The correct answer is option B. i.e. E°cell > 0 = spontaneous reaction.

The spontaneous reactions always have positive voltage and the energy released in the reaction is used up to do work.