When two half-cells of electrode potential of E 1 and E 2 are combined to form a cell of…
Chemistry · JEE Main · NTA Exams — Redox Reactions and Electrochemistry
When two half-cells of electrode potential of E1 and E2 are combined to form a cell of electrode potential E3, then (when n1, n2 and n3 are no. of electrons exchanged in first, second and combined half-cells) :
- E3 = E2 – E1
- E3 = \(\frac{\mathrm{E}_{1} \mathrm{n}_{1}+\mathrm{E}_{2} \mathrm{n}_{2}}{\mathrm{n}_{3}}\)
- E3 = \(\frac{\mathrm{E}_{1} \mathrm{n}_{1}-\mathrm{E}_{2} \mathrm{n}_{2}}{\mathrm{n}_{3}^{2}}\)
- E3 = E1 + E2
Answer
(B) E 3 = E _ 1 n _ 1 + E _ 2 n _ 2 n _ 3
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- Which of the given reactions is not an example of disproportionation reaction?
- A current of 2 ampere was passed through solutions of CuSO 4 and AgNO 3 in series. 0.635 g of copper was…
- K 2 CrO 4 oxidises KI in the presence of HCl to I 2 . The equivalent weight of the K 2 CrO 4 is
- The standard free energy change for the following reaction is – 210 kJ. What is the standard cell potential ?…
- The correct order of reactivity of K, Mg, Zn and Cu with water according to the electrochemical series is
- Chlorine undergoes disproportionation in alkaline medium as shown below: aCl 2 (g) + bOH – (aq) → cClO – (aq)…
- Which out of the following is a correct equation to show change in molar conductivity with respect to…
- Fuel cell, using hydrogen and oxygen as fuels, A. has been used in spaceship B. has as efficiency of 40% to…
More Redox Reactions and Electrochemistry questions · Browse all practice questions