Consider an electrochemical cell in which the reaction is described by the equat

Question

Consider an electrochemical cell in which the reaction is described by the equation: Pb (s) + 2 Ag^+(aq) + So^2_4 doubleheadarrow PbSo_4(s) + 2 Ag(s) Use lessthanorequalto Chatelain's principle to predict which of the following statements is not correct. Select one: An increase in the amount of PbS0_4(s) will decrease the voltage. Doubling the size of the cell while keeping the concentrations constant will affect no change. An increase in [Ag^+] will increase the voltage. An increase in [S0^2_4] increase the voltage.

Explanation / Answer

since PbSO4 is solid, it will not effect the equilibrium as solid so not appear in the expression for equilibrium constant

Answer:
An increase in PbSO4(s) will decrease the voltage

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