The enthalpy of combustion of ethene is $-1411\mathrm{kJ}\mathrm{mo}{\mathrm{l}}^{-1}$. The heat released on complete combustion of $5.6\mathrm{g}$ of ethene ($M=28\mathrm{g}\mathrm{mo}{\mathrm{l}}^{-1}$) is

More questions on Thermochemistry: enthalpies of formation, combustion, bond enthalpy, Hess's law

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