34. Solving a chemistry problem

34. Solving a chemistry problem

7. Calculate the enthalpy of formation of H2SO4 at T = 298 K, if the thermal effects of the reactions are known:
S O2=SO2 (ΔH0298)k.r=-296.9 kJ/mol;
SO2 0.5O2=SO3(g) ΔH0298)k.r=-98.3 kJ/mol;
SO3(g) H2O(l)=H2SO4(l) ΔH0298)k.r=-130.3 kJ/mol;

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