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Social ScienceWhen 500 J of heat is added to a gas, the gas expands its volume from 0.003 m3 to 0.00405 m3 at a constant pressure of 144000 Pa. How much work (in J) is done by the gas?
When 500 J of heat is added to a gas, the gas expands its volume from 0.003 m3 to 0.00405 m3 at a constant pressure of 144000 Pa. How much work (in J) is done by the gas?
Expert Answer
Given information:
Amount of heat added to the system = 500 J
Initial volume of the gas = 0.003 m3
Final volume of the gas = 0.00405 m3
Pressure of the gas = 144000 Pa
Work done during expansion of a gas can be expressed in terms of pressure and change in volume. The mathematical expression for work done during an expansion can be represented as follows:
Image Transcriptionclose
w =-pAV
Plugging the values of change in volume and pressu...
Image Transcriptionclose
w -144000 Pax(0.00405-0.003) m2 =-144000 Pax (0.00105) m -151.2 Pa.m =-151.2 J
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