A student carried out an experiment to determine the enthalpy of combustion of propan-1-ol. Combustion of 485 mg485 \text{ mg}485 mg of propan-1-ol increased the temperature of 150 g150 \text{ g}150 g of water from 20.2 ∘C20.2\text{ }^\circ\text{C}20.2 ∘C to 38.7 ∘C38.7\text{ }^\circ\text{C}38.7 ∘C. Calculate a value, in kJ mol−1\text{kJ mol}^{-1}kJ mol−1, for the enthalpy of combustion of propan-1-ol in this experiment. Give your answer to the appropriate number of significant figures. (The specific heat capacity of water is 4.18 J K−1 g−14.18 \text{ J K}^{-1} \text{ g}^{-1}4.18 J K−1 g−1)