Apparatus and Procedure Lab 1 Boy's Calorimeter

APPARATUS/MATERIALS

Figure : Set-up apparatus for Boy’s Calorimeter Experiment

Figure : Boy’s Calorimeter

PROCEDURE Start-Up Procedures 1 All the water lines were checked. 2 The supply water was opened. 3 Gas supply was switched on. 4 Fire adjuster was adjusted about 0.3 L/s. 5 Light up the burner. 6 Open the water supply. 7 Gas calorimeter was inserted into the gas calorimeter box. Experimental Procedures 1. The apparatus were set-up correctly by following the start-up procedures. 2. The current reading of atmospheric pressure was recorded from the Aneroid Barometer. 3. The calorimeter water outlet spout was positioned over the section of the changeover funnel that drains into the sink. 4. The collecting beaker was completely emptied and drained. 5. When the meter pointer was approached the top of the dial on the gas meter, reading from gas inlet temperature was recorded. 6. When the meter pointer approached the top of the dial, the calorimeter water outlet spout was moved to the section of changeover funnel that was directed to the collecting beaker. At the same time, stopwatch was started simultaneously. 7. After complete revolution of the gas meter reading, the water inlet and outlet temperature on calorimeter and time taken from stopwatch were recorded. 8. When revolution of gas meter completed, the calorimeter outlet spout was move back to the section of the changeover funnel that is directed to the sink and stop the stopwatch. 9. The experiment was repeated four times. 10. Shut-down procedures were conducted. Shut-Down Procedures 1. Gas supply was switched off. 2. Water supply was closed off.