The standard enthalpy of complete combustion of a hydrocarbon at $298\mathrm{K}$ is

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

• Data in kJ mol^-1: Delta_cH(graphite) = -393.5; Delta_cH(CO) = -283.0; Delta_cH(H2) = -285.8 (to liquid water); Delta_vapH(H2O) = +44.0. For... JEE Advanced level
• Which of the following has a non-zero standard enthalpy of formation at 298 K? NEET level
• Hess's law of constant heat summation states that the enthalpy change of a reaction NEET level
• The H-H bond enthalpy is 436 kJ mol^-1. What is Delta H for 2H(g) -> H2(g)? NEET level
• Using Delta_fH deg(C2H4(g))=+52.3, Delta_fH deg(CO2(g))=-393.5 and Delta_fH deg(H2O(l))=-285.8 kJ mol^-1, find Delta H deg for C2H4(g) + 3O2... JEE Main level
• Estimate Delta H for CH4(g) + Cl2(g) -> CH3Cl(g) + HCl(g) using bond enthalpies in kJ mol^-1: C-H=414, Cl-Cl=243, C-Cl=339, H-Cl=431. JEE Main level