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posted by  MS. STUDENT on 11/3/2009 4:25:53 PM  |  status: Live  |  Earned Karma: 45

help ms student

Course Textbook Chapter Problem Needs by
General Physics College Physics (8th) by Serway, Faughn, Vuille 12 2 11/4/2009 at 8:00:00 AM
Question Details:
Sketch a PV diagram and find the work done by the gas during the following stages. (Draw the PV diagram on paper. Your instructor may ask you to turn in this work.)
(a) A gas is expanded from a volume of 1.0 L to 2.6 L at a constant pressure of 3.3 atm.
1 J

(b) The gas is then cooled at constant volume until the pressure falls to 1.9 atm.
2 J

(c) The gas is then compressed at a constant pressure of 1.9 atm from a volume of 2.6 L to 1.0 L. (Note: Be careful of signs.)
3 J

(d) The gas is heated until its pressure increases from 1.9 atm to 3.3 atm at a constant volume.
4 J

(e) Find the net work done during the complete cycle.
5 J
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(SME)
posted by JamesD on 11/3/2009 5:00:25 PM  |  status: Live
Asker's Rating: Somewhat Helpful   
Response Details:

(a) A gas is expanded from a volume of 1.0 L to 2.6 L at a constant pressure of 3.3 atm.
1              W1 = 535 J

(b) The gas is then cooled at constant volume until the pressure falls to 1.9 atm.
2              W2 = 0  J

(c) The gas is then compressed at a constant pressure of 1.9 atm from a volume of 2.6 L to 1.0 L. (Note: Be careful of signs.)
3               W3  = 308 J

(d) The gas is heated until its pressure increases from 1.9 atm to 3.3 atm at a constant volume.
4              W4 = 0 J

(e) Find the net work done during the complete cycle.
5              W = 302 J
I hope this helps! Best of luck with the rest of your coursework.
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