21. Solving a chemistry problem

3. For GE, the EMF values are known at two temperatures. The activity of the electrolyte solution is equal to one.
1. Write down the reaction equations on the electrodes and the final reaction in the GE
2. Determine the EMF temperature coefficient.
3. Calculate the value of the EMF at a temperature of 298 K, compare it with the reference value.
4. Calculate the values of the standard molar enthalpy, entropy, Gibbs energy of the final reaction occurring in this HE at 298 K, compare them with the values obtained from the thermodynamic characteristics
Cu|Pt, H2|HBr| Hg2Brtv, Hg| Cu
E1, mV E2, mV T1,K T2, K
139.3 136.6 293 310