A 0.425g sample of propane was mixed with excess oxygen in a calorimeter containing 98.72 g of water. The system was ignited and the temperature rose from 18.29ºC to 26.85ºC. The chemical equation for this reaction is :
C3H8 + 02 --> 3CO2 + 4H2O
Calculate the molar enthalpy of propane in J/mol