3. Solving a chemistry problem

44. For the reaction shown in table 1.3:
1) calculate the thermal effect of the reaction from the known values of the standard heats of formation of the starting materials and reaction products;
2) determine ΔH from the assumption:
a) Δс=0;
b) Δс=const;
c) Δс=f(T).
3) determine ∆S298 and ∆St for the reaction;
4) calculate the value of ΔG298 and ΔGt and draw a conclusion about the direction of the reaction under standard conditions and at temperature T
Thermodynamic characteristics of substances are given in table 1.4
Reaction equation T,K
Ca(OH)2(c) CaO(c)=H2O(g) 500