Experimental

The Bomb Calorimeter provides a constant volume environment in which materials can be burned and their heat of combustion determined. Care must be taken to stay within the design limits of the calorimeter and NOT MORE THAN ONE GRAM OF CARBON EQUIVALENT of a combustible material may be burned in the oxygen atmosphere of the calorimeter. The oxygen pressure is RESTRICTED TO LESS THAN 2.0 MPa (20 ATMOSPHERES). The fuel/oxygen mixture may be ignited electrically using the fuse-wire provided. This wire should be brought close to the sample surface. The wire metal has a heat of combustion per unit length of 2.3 cal/cm. The heat generated in the combustion reaction is transferred to the calorimeter and the water surrounding it in the quasi-adiabatic enclosure. The calorimeter has an effective heat capacity of 2433 cal/C. The temperature increase produced by this heat transfer can be measured using the thermistor thermometer in the lid of the enclosure. This thermometer may be used in conjunction with the data collection program, and/or by measuring its output as a