Pressure-Volume (PV) diagram for Perfect Gas: # moles = 150 7- T=400.0 K T=600.0 K T=800.0 K T=1000.0 K T=1200.0 K T=1400.0 K T=1600.0 K T=1800 K 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Volume (cubic meters) 3. 2. Pressure (atm)
Pressure-Volume (PV) diagram for Perfect Gas: # moles = 150 7- T=400.0 K T=600.0 K T=800.0 K T=1000.0 K T=1200.0 K T=1400.0 K T=1600.0 K T=1800 K 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Volume (cubic meters) 3. 2. Pressure (atm)
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter20: Kinetic Theory Of Gases
Section: Chapter Questions
Problem 2PQ
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Question
An ideal gas expands at constant pressure (P1=6.00x105 Pa) from a volume VA=1.00 m3 to a volume VB=4.00 m3. Next, the gas is compressed to a volume VC=2.50 m3 and a pressure P2=2.00x105 Pa. The gas finally returns to its initial state (P1=6.00x105 Pa and VA=1.00 m3). Work is the area under the PV-diagram curve and the sign matters. (See Figure and ignore the isotherms. They are not needed to solve the problem. Note, the figure is labeled in atmospheres while the problem statement uses Pascals—use Pascals)
- How much work is done on the gas during the first (isobaric) process?
- How much work is done on the gas during the second (general process)?
- How much work is done on the gas during the third (general process)
- How much work is done during one complete cycle of this process?
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