19. If a reducing agent M reacts with an oxidizing agent to give and Q, and the equilibrium constant for the reaction is 1.0, then what is the Eº value for the oxidation-reduction reaction at 25°C?
(A) −1.0 V ;
(B) 1.0 V ;
(C) 0.03 V ;
(D) 0.0 V;
(E) – 0.03 V

相關試題

相關試卷