Question

. The electrode potential of hydrogen electrode is
when H20+ ion concentration is 10-5 M
(pH, = 1 atm)
[NCERT Pg. 68]
(1) - 0.059 V
(2) - 0.295 V
(3) - 0.118 V
(4) - 0.59 V​

Answer 1

Answer:(4)

Explanation:

2H+ 2e- = H2

By Nernst Equation

Ecell =E°cell - (0.059/n) log[pH2/[H+]2

= 0- (0.059/2)log[1/(10^-5)2]

= - 0.59V

Answer 2

Answer:

-0.295

Explanation:

2H+ 2e- = H2

By Nernst Equation

Ecell =Eºcell - (0.059/n) log( pH2/[H+]^2 )

= 0-(0.059/2)log[1/(10^-5)2]

= -(0.059/2) (10)

= -0.295