Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 27.2, Problem 3aTH
To determine
To Compare:The displacement of the piston for process I and IV.
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3P
ЗРо
Process 2
2Po-
Po
Process 1
Vo
3Vo
A sealed cylinder with a movable piston contains N molecules of an ideal gas. The gas is initially in the state with pressure Po and volume 3V,
shown on the graph of pressure P as a function of volume V. The gas is then taken through the two processes shown.
Which of the following correctly describes the change in average speed of the molecules, if any, as the gas is taken through each process?
Part A
A cube 21 cm on each side contains 3.2 g of
helium at 20°C. 1300 J of heat are transferred to
this gas.
What is the final pressure if the process is at constant volume?
Express your answer with the appropriate units.
• View Available Hint(s)
µA
=
Value
Units
Submit
Part B
What is the final volume if the process is at constant pressure?
Express your answer with the appropriate units.
• View Available Hint(s)
µÀ
V =
Value
Units
Part A
For the heat engine shown in the figure, Q1 = 20 J and Q2 = 72 J. (Figure 1)
What is Wut for the heat engine shown in the figure?
Express your answer to two significant figures and include the appropriate units.
HẢ
?
Wout =
Value
Units
Submit
Request Answer
Part B
What is Qu for the heat engine shown in the figure?
Express your answer to two significant figures and include the appropriate units.
HA
QH =
Value
Units
Submit
Request Answer
Figure
< 1 of 1
Part C
p (kPa)
What is the thermal efficiency for the heat engine shown in the figure?
Express your answer using two significant figures.
400
200
V (cm³)
200
Submit
Request Answer
100
Chapter 27 Solutions
Tutorials in Introductory Physics
Ch. 27.1 - Prob. 1aTHCh. 27.1 - In this process, which of the quantities P, V, n,...Ch. 27.1 - Consider the following incorrect student...Ch. 27.1 - Explain why it is not possible to use the ideal...Ch. 27.1 - A long pin is used to hold the piston in place as...Ch. 27.1 - A long pin is used to hold the piston in place as...Ch. 27.1 - Prob. 2cTHCh. 27.2 - Prob. 1aTHCh. 27.2 - Prob. 1bTHCh. 27.2 - Prob. 1cTH
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