4. Solution to Chemistry Problem

5.58 the electromotive force of the element Pb∣PbSO4(s)∣Na2SO4⋅10H2O(sat. sol.)∣Hg2SO4(s)∣Hg
is 0.9647 V at 25 C. The temperature coefficient is 1.74*10−4 V⋅K−1
Calculate:
a) the change in the enthalpy of the reaction;
b) the change in the Gibbs energy for the reaction occurring in the element;
c) write down the expression for the equilibrium constant of the reaction;
d) in which case the EMF of the element will become equal to zero