Given
`C+2S rarr CS_(2), DeltaHf^(@)=+117.0 kJ mol^(-1)`
`C+O_(2) rarr CO_(2), DeltaHf^(@)=-393.0 kJ mol^(-1)`
`S+O_(2) rarr SO_(2), DeltaHf^(@)=-297.0 kJ mol^(-1)`
The heat of combustion of
`CS_(2)+3O_(2) rarr CO_(2)+2SO_(2)` is
A. `-807 kJ mol^(-1)`
B. `-1104 kJ mol^(-1)`
C. `+1104 kJ mol^(-1)`
D. `+807 kJ mol^(-1)`

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1 Answers

Correct Answer - B
`DeltaH=H_(P)-H_(R)`

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