4. For the substance indicated below with the corresponding problem number, calculate the standard enthalpy of formation at 298 K, knowing its standard enthalpy of combustion, and also calculate the standard enthalpy of formation at 398 K, using the obtained value (enthalpy of formation) and isobaric heat capacities Cp. Combustion products CO2(g), H2O(l), N2(g).
4. Naphthalene C10H8(t)

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