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in Chemistry by (66.1k points)

The equilibrium voltage of the cell, 

Zn /ZnSO4 (0.0125 M) ||Ag2SO4 (0.0125 M) / Ag 

was measured at several temperatures and the results of the measurements are given in the following table: 

t / °C  10  20  30
 E / V  1.5784 1.5675  1.5566 

(1) Give the equation for the reaction occurring in this galvanic cell. 

(2) Determine the value of the cell voltage at the temperature T = 298 K. 

(3) Determine ∆rG298 of the cell reaction. 

(4) Determine ∆rH298 of the cell reaction. 

1 Answer

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Best answer

(1) Zn + Ag2SO4 → ZnSO4 + 2Ag 

(2) The temperature dependence is described by the equation, 

(4) The equation, ∆G = ∆H − T ∆S

is employed to calculate ∆rH298, substituting 

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