2. The gas reaction 2H2 S2=2H2S takes place in the system at a pressure of 1 atm and a temperature of 500 K.
Need to find:
1) coefficients of temperature dependence of the molar isobaric heat capacity of substances in the reference literature;
2) standard molar enthalpy of reaction at this temperature;
3) make a conclusion about what kind of reaction this is: exothermic or endothermic.

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