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Calculate the heat of formation of benze...

Calculate the heat of formation of benzene from the following data.
`C(s)+O_2(g)rarrCO_2(g)triangleH=-393.5kJ`
`C_6H_6(l)+15/2O_2(g)rarr6CO_2(g)+3H_2O(l) triangleH=-3267.7kJ`
`H_2(g)+1/2O_2(g)rarrH_2O(l)triangleH=-286.2kJ`

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