9. Express the dependence of the thermal effect of the reaction on temperature, if the standard enthalpies of formation of the substances involved in the reaction are known, and the equations of the dependence Cp=f(T).
2. Calculate the thermal effect of the reaction at temperature T and determine how much QP differs from QV at this temperature (the thermal effect of the reaction at constant pressure from the thermal effect at constant volume).
Chemical reactions are presented in table. 3.
Table 3
variant Reaction Temperature, K
9 2PbO PbS = SO2 3Pb 600

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