calculating the enthalpy change in combustion reactions.
In an experiment 1 g of hexane (C₈H₁₄) was completely burned in air. The heat evolved raised the temperature of 200 g of water from 293.5 K to 345.1 K. Use this data to calculate the enthalpy of combustion of hexane (the specific heat capacity of water 4.18 J g-¹ K-¹)