Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN: 9781133939146
Author: Katz, Debora M.
Publisher: Cengage Learning
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Chapter 22, Problem 23PQ
(a)
To determine
The efficiency of an Otto engine as
(b)
To determine
The difference
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1 moles of a diatomic ideal gas undergoes a cyclic process as depicted in the figure below. The
processes AB and CD are isobaric and the process DA is adiabatic. For the given values
PA= 11.5 atm, VA= 6.5 L, V3= 3.25 L, Pc= 23 atm, and Vc=1.981 L answer the
following questions.
J
(use R=8.314
1 atm = 1.013x105 Pa, 1 L= 10-3 m3)
mol · K'
Volume
1. Calculate the temperature TA
K
2. What type of process is the process BC?
3. Calculate the work done by the gas in the process DA.WDA =
4. Calculate the magnitude of the net heat entering the cycle. |QH|=|
5. Calculate the magnitude of the net heat leaving the cycle. |Qcl =
6. Calculate the net work done by the gas. EW=
7. Calculate the thermal efficiency of the cycle. e =
8. Calculate the change in the entropy in the process AB. Include the sign (positive or negative) in
Pressure
An ideal gas with energy E = NKBT is subjected to a cyclic, quasi-static (i.e. reversible) process shown in the figure. What is the work (in J) done by the gas during one
complete cycle?
C
AV
1
2
3
Volume (m³)
Type your answer.
Pressure (Pa)
2.
2 moles of a monatomic ideal gas undergoes a cyclic process as depicted in the figure below. The processes AB and CD are isobaric and the process DA is adiabat
given values p= 12.5 atm, V= 5.6 L, V= 2.8 L, pc= 25 atm, and V.= 1.849 L answer the following questions.
(u se R=8.314
1 atm = 1.013x 105 Pa, 1L= 10-3 m³)
mol · K'
Volume
1. Calculate the temperature T= 989.75
XK
2. What type of process is the process BC? adiabatic +
3. Calculate the work done by the gas in the process DA.WDA= 6765.9
XJ
4. Calculate the magnitude of the net heat entering the cycle. Q4 = 15871.96
XJ
5. Calculate the magnitude of the net heat leaving the cycle. Qe= 4593.485
XJ
6. Calculate the net work done by the gas. W=
XJ
7. Calculate the thermal efficiency of the cycle. e =
8. Calculate the change in the entropy in the process AB. Include the sign (positive or negative) in your answer as well. AS
AB
Chapter 22 Solutions
Physics for Scientists and Engineers: Foundations and Connections
Ch. 22.2 - Prob. 22.1CECh. 22.4 - Prob. 22.2CECh. 22.5 - Prob. 22.3CECh. 22.7 - You have considerable intuition about whether some...Ch. 22.9 - Prob. 22.5CECh. 22 - Prob. 1PQCh. 22 - Heat Engines Figure P22.2 shows a Carnot cycle....Ch. 22 - Use a PV diagram such as the one in Figure 22.2...Ch. 22 - Prob. 4PQCh. 22 - Prob. 5PQ
Ch. 22 - Prob. 6PQCh. 22 - An engine with an efficiency of 0.36 can supply a...Ch. 22 - Prob. 8PQCh. 22 - Prob. 9PQCh. 22 - Prob. 10PQCh. 22 - Prob. 11PQCh. 22 - Prob. 12PQCh. 22 - Prob. 13PQCh. 22 - Prob. 14PQCh. 22 - Prob. 15PQCh. 22 - Prob. 16PQCh. 22 - Prob. 17PQCh. 22 - Prob. 18PQCh. 22 - Prob. 19PQCh. 22 - Prob. 20PQCh. 22 - Prob. 21PQCh. 22 - In 1816, Robert Stirling, a Scottish minister,...Ch. 22 - Prob. 23PQCh. 22 - Prob. 24PQCh. 22 - Prob. 25PQCh. 22 - Prob. 26PQCh. 22 - Prob. 27PQCh. 22 - Prob. 28PQCh. 22 - Prob. 29PQCh. 22 - Prob. 30PQCh. 22 - Prob. 31PQCh. 22 - Prob. 32PQCh. 22 - Prob. 33PQCh. 22 - Prob. 34PQCh. 22 - Prob. 35PQCh. 22 - Estimate the change in entropy of the Universe if...Ch. 22 - Prob. 37PQCh. 22 - Prob. 38PQCh. 22 - Prob. 39PQCh. 22 - Prob. 40PQCh. 22 - Prob. 41PQCh. 22 - Prob. 42PQCh. 22 - Prob. 43PQCh. 22 - Prob. 44PQCh. 22 - Prob. 45PQCh. 22 - Prob. 46PQCh. 22 - Prob. 47PQCh. 22 - Prob. 48PQCh. 22 - Prob. 49PQCh. 22 - Prob. 50PQCh. 22 - Prob. 51PQCh. 22 - Prob. 52PQCh. 22 - Prob. 53PQCh. 22 - Prob. 54PQCh. 22 - Prob. 55PQCh. 22 - Prob. 56PQCh. 22 - What is the entropy of a freshly shuffled deck of...Ch. 22 - Prob. 58PQCh. 22 - Prob. 59PQCh. 22 - Prob. 60PQCh. 22 - Prob. 61PQCh. 22 - Prob. 62PQCh. 22 - Prob. 63PQCh. 22 - Prob. 64PQCh. 22 - Prob. 65PQCh. 22 - Prob. 66PQCh. 22 - Prob. 67PQCh. 22 - Prob. 68PQCh. 22 - Prob. 69PQCh. 22 - Prob. 70PQCh. 22 - A system consisting of 10.0 g of water at a...Ch. 22 - Prob. 72PQCh. 22 - Figure P22.73 illustrates the cycle ABCA for a...Ch. 22 - Prob. 74PQCh. 22 - Prob. 75PQCh. 22 - Prob. 76PQCh. 22 - Prob. 77PQCh. 22 - Prob. 78PQCh. 22 - Prob. 79PQCh. 22 - Prob. 80PQCh. 22 - Prob. 81PQ
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