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Thermometer A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. Ignition wires heat sample Stirrer In an experiment, a 1.1750 g sample of dimethyl oxalate (C4H604) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.146x103 g of water. During the combustion the temperature increases from 22.34 to 25.41 °C. The heat capacity of water is 4.184 ) g-loc-1. Water The heat capacity of the calorimeter was determined in a previous experiment to be 893.8 J/°C. Assuming that no energy is lost to the surroundings, calculate the molar heat of combustion of dimethyl oxalate based on these data. Insulated outside chamber Sample dish Burning sample Steel bomb C4H6045) + (7/2) O2(9) 3 H2O(1) + 4 CO2(g) + Energy () ( (g Molar Heat of Combustion kJ/mol Combustion (bomb) calorimeter.