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Efficiency of change of state of gases apparatus
The experiment aims to determine the efficiency of changing a gas's state by measuring the work done on the gas during compression using Boyle's law, timing how long it takes to compress the gas fully, and calculating efficiency by dividing the power output by the power input from the battery over time. The apparatus includes a chamber to compress the gas and a stopwatch to time compression. Gas pressure and volume are recorded at different states to calculate work done using the formula for constant temperature.
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Efficiency of change of state of gases apparatus
- 1. EXPERIMENT : Finding theefficiency of change of state of gas apparatus. Apparatus : Change of state of gas Stop watch Theory : Work done on the gas can be found in boyle’s law by findung area under the curve . E nergy supplied can be found by timing the experiment and multiplying by power of the battery.
- 2. Procedure : Firstwe increase pressure of gas inside the chamber . Due to which volume decreases. We note the time which is taken by the whole gas to be compressed. By using the formula of costant temperature we calculate the work done. Now we divide the total work done by total time. By doing this power comes. Then power is divided by energy supplied per unit time . From this efficiency comes out . Table : P(kpa) V W(J) P(watt) Energy (j/s) efficency