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Question

If S+O2SO2;ΔH=298.2kJ

SO2+1/2O2SO3;ΔH=98.7kJ
SO3+H2OH2SO4;ΔH=130.2kJ
H2+1/2O2H2O;ΔH=287.3kJ
Then the enthalpy of formation of H2SO4at298K is :

A
814.4kJ
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B
650.3kJ
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C
320.5kJ
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D
233.5kJ
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