3. At 25 °C temperature, for the reaction, Sn + Cu2+ -..--> Sn2+ + Cu the value of Eºcell is
0.48 V then what will be the equilibrium constant of the reaction?
(A) 1.3 x 100
(B) 6.8 x 104
(C) 4.9x 1020
(D) 1.8 x 1016
Answers
Answered by
11
Answer:The expression for the standard cell potential is E
cell
0
=E
Cu2+∣Cu
0
−E
Sn4+∣Sn2+
0
Substitute values in the above expression.
E
cell
0
=0.34V−0.15V=0.19V
The expression for the equilibrium constant K is logK=
0.0592
nE
0
Substitute values in the above expression.
logK=
0.0592
2×0.19
=6.418
Hence, the value of the equilibrium constant is 2.618×10
6
Explanation:
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