JULY 2018 2. b. An electrochemical cell can be constructed using the equation: 1. ii. iii. MARCH 2018 H₂SO3 (aq) + Fe³+
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JULY 2018 2. b. An electrochemical cell can be constructed using the equation: 1. ii. iii. MARCH 2018 H₂SO3 (aq) + Fe³+ (aq) SO² (aq) + Fe²+ (aq) Balance the above REDOX reaction in acidic condition. a representation of the cell. Write short and notation Draw and label a complete diagram of the cell.
MARCH 2018 2. b. Two half-reaction equations and their standard reduction potentials are given below. 2CIO3(aq) + 12H* (aq) + 10 S2O8² (aq) + 2e 2SO4² (aq) ii. and label a complete diagram of the cell. iii. iv. Cl2 (g) + 6H₂O (1) Eºred = +1.47 V Ered = +2.01 V Write a balanced equation for the overall cell reaction. Calculate the standard cell potential, Ecell- Find the change in Gibbs free energy, AG° at 298 K. Explain whether the reaction in part (iii) is spontaneous or not.
MARCH 2018 2. b. Two half-reaction equations and their standard reduction potentials are given below. 2CIO3(aq) + 12H* (aq) + 10 S2O8² (aq) + 2e 2SO4² (aq) ii. and label a complete diagram of the cell. iii. iv. Cl2 (g) + 6H₂O (1) Eºred = +1.47 V Ered = +2.01 V Write a balanced equation for the overall cell reaction. Calculate the standard cell potential, Ecell- Find the change in Gibbs free energy, AG° at 298 K. Explain whether the reaction in part (iii) is spontaneous or not.