List of top Chemistry Questions on Enthalpy change asked in KEAM

Enthalpy of combustion of benzene, graphite, dihydrogen are \( -3260 \), \( -390 \) and \( -290\text{ kJ/mol} \). Find the enthalpy of formation of benzene

12g of pure graphite is burnt. Temperature rises from 298 K to 308 K. Heat capacity of the calorimeter is $20.7~kJ~K^{-1}$. Enthalpy change for combustion of 1 mole of graphite $(kJ~mol^{-1})$ is ________.