55. Solution to Chemistry Problem
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12. For a redox element of the type:
Pt | A, B || C, D | Pt
using the standard electrode potentials of half-cells (Brief Handbook of Physicochemical Quantities. Edited by K.P. Mishchenko, A.A. Ravdel. 1974), write an equation and calculate the equilibrium constant of the oxidation-reduction reaction. Calculate the emf of the element (T = 298 K). Indicate whether it is possible to practically change the direction of the reaction by changing the concentration of the components. Take aH2O = 1 an = 0.2
Option No. A B C D aA aB aC aD
12 Cu2 Cu UO22 U4 0.007 0.016 0.002 0.05
Pt | A, B || C, D | Pt
using the standard electrode potentials of half-cells (Brief Handbook of Physicochemical Quantities. Edited by K.P. Mishchenko, A.A. Ravdel. 1974), write an equation and calculate the equilibrium constant of the oxidation-reduction reaction. Calculate the emf of the element (T = 298 K). Indicate whether it is possible to practically change the direction of the reaction by changing the concentration of the components. Take aH2O = 1 an = 0.2
Option No. A B C D aA aB aC aD
12 Cu2 Cu UO22 U4 0.007 0.016 0.002 0.05
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