Pearson eText -- Physics for Scientists and Engineers with Modern Physics -- Instant Access (Pearson+)
5th Edition
ISBN: 9780137488179
Author: Douglas Giancoli
Publisher: PEARSON+
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Textbook Question
Chapter 20, Problem 73GP
The operation of a certain
FIGURE 20-25
Problem 69.
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Students have asked these similar questions
a) A Carnot engine which uses 0.20 mole of gas operates between heat baths with
temperature of Th=300°C and T. -100°C. If the expansion ratio along the high temperature
isotherm is 10.0 (20.0L to 2.0 L), computed the efficiency of the engine and the work output
during each cycle.
Answer
A Carnot cycle, consisting of an isothermal expansion and an adiabatic expansion, followed by
an isothermal compression and an adiabatic compression, is the most efficient form of a heat
engine.
M
AN
The efficiency of a Carnot cycle is
Te
ee =1-
Th
(a) If an engine operating between heat reservoirs at 293K and 473K extracts 1000 J per cycle
from the hot reservoir, what is the maximum possible work that engine can do per cycle?
(b) For this maximum work, how much heat is exhausted to the cold reservoir per cycle?
Chapter 20 Solutions
Pearson eText -- Physics for Scientists and Engineers with Modern Physics -- Instant Access (Pearson+)
Ch. 20.3 - Prob. 1AECh. 20.9 - Prob. 1DECh. 20 - Prob. 1QCh. 20 - Can you warm a kitchen in winter by leaving the...Ch. 20 - Would a definition of heat engine efficiency as e...Ch. 20 - Prob. 4QCh. 20 - Prob. 5QCh. 20 - The oceans contain a tremendous amount of thermal...Ch. 20 - Discuss the factors that keep real engines from...Ch. 20 - Prob. 8Q
Ch. 20 - Describe a process in nature that is nearly...Ch. 20 - (a) What happens if you remove the lid of a bottle...Ch. 20 - Prob. 11QCh. 20 - Prob. 12QCh. 20 - Give three examples, other than those mentioned in...Ch. 20 - Which do you think has the greater entropy, 1 kg...Ch. 20 - Prob. 16QCh. 20 - Prob. 17QCh. 20 - The first law of thermodynamics is sometimes...Ch. 20 - Powdered milk is very slowly (quasistatically)...Ch. 20 - Two identical systems are taken from state a to...Ch. 20 - It can he said that the total change in entropy...Ch. 20 - Prob. 22QCh. 20 - Prob. 23QCh. 20 - Prob. 1MCQCh. 20 - Prob. 2MCQCh. 20 - Prob. 3MCQCh. 20 - Prob. 4MCQCh. 20 - Prob. 5MCQCh. 20 - Prob. 6MCQCh. 20 - Prob. 7MCQCh. 20 - Prob. 8MCQCh. 20 - Prob. 9MCQCh. 20 - Prob. 10MCQCh. 20 - Prob. 11MCQCh. 20 - Prob. 12MCQCh. 20 - Prob. 1PCh. 20 - Prob. 2PCh. 20 - Prob. 3PCh. 20 - (II) A typical compact car experiences a total...Ch. 20 - Prob. 5PCh. 20 - (II) Figure 2017 is a PV diagram for a reversible...Ch. 20 - Prob. 7PCh. 20 - Prob. 8PCh. 20 - Prob. 9PCh. 20 - Prob. 10PCh. 20 - (II) (a) Show that the work done by a Carnot...Ch. 20 - Prob. 12PCh. 20 - Prob. 13PCh. 20 - Prob. 14PCh. 20 - (II) Assume that a 65 kg hiker needs 4.0 103 kcal...Ch. 20 - Prob. 16PCh. 20 - Prob. 18PCh. 20 - (III) A Carnot cycle, shown in Fig. 20-7, has the...Ch. 20 - (III) One mole of monatomic gas undergoes a Carnot...Ch. 20 - (III) In an engine that approximates the Otto...Ch. 20 - Prob. 22PCh. 20 - Prob. 23PCh. 20 - Prob. 24PCh. 20 - Prob. 25PCh. 20 - Prob. 26PCh. 20 - Prob. 27PCh. 20 - Prob. 28PCh. 20 - (II) An ideal heal pump is used to maintain the...Ch. 20 - Prob. 30PCh. 20 - Prob. 31PCh. 20 - Prob. 32PCh. 20 - Prob. 33PCh. 20 - Prob. 34PCh. 20 - Prob. 35PCh. 20 - (I) What is the change in entropy of 1.00 m3 of...Ch. 20 - Prob. 37PCh. 20 - (II) If 0.45kg f water at 100C is changed by a...Ch. 20 - Prob. 39PCh. 20 - Prob. 40PCh. 20 - Prob. 41PCh. 20 - Prob. 42PCh. 20 - Prob. 43PCh. 20 - Prob. 44PCh. 20 - Prob. 45PCh. 20 - Prob. 46PCh. 20 - Prob. 47PCh. 20 - (II) An ideal gas of n moles undergoes the...Ch. 20 - Prob. 49PCh. 20 - Prob. 50PCh. 20 - (II) Two samples of an ideal gas are initially at...Ch. 20 - (II) 1.00 mole of nitrogen (N2) gas and 1.00 mole...Ch. 20 - (II) (a) Why would you expect the total entropy...Ch. 20 - (II) Thermodynamic processes are sometimes...Ch. 20 - Prob. 55PCh. 20 - (III) Consider an ideal gas of n moles with molar...Ch. 20 - (III) A general theorem states that the amount of...Ch. 20 - Prob. 58PCh. 20 - (I) Use Eq. 2014 to determine the entropy of each...Ch. 20 - (II) Suppose that you repeatedly shake six coins...Ch. 20 - (II) (a) Suppose you have four coins, all with...Ch. 20 - Prob. 62PCh. 20 - Prob. 63PCh. 20 - Prob. 64PCh. 20 - Prob. 65PCh. 20 - Prob. 66PCh. 20 - Prob. 67GPCh. 20 - Prob. 68GPCh. 20 - A heat engine takes a diatomic gas around the...Ch. 20 - Prob. 70GPCh. 20 - Prob. 71GPCh. 20 - Prob. 72GPCh. 20 - The operation of a certain heat engine takes an...Ch. 20 - Prob. 74GPCh. 20 - Prob. 75GPCh. 20 - 1.00 mole of an ideal monatomic gas at STP first...Ch. 20 - Prob. 77GPCh. 20 - Prob. 78GPCh. 20 - Prob. 80GPCh. 20 - Prob. 82GPCh. 20 - The Stirling cycle shown in Fig 20-27, is useful...Ch. 20 - Prob. 84GPCh. 20 - Prob. 85GPCh. 20 - Thermodynamic processes can be represented not...Ch. 20 - An aluminum can, with negligible heat capacity, is...Ch. 20 - Prob. 88GPCh. 20 - A bowl contains a large number of red, orange, and...Ch. 20 - Prob. 90GPCh. 20 - Prob. 92GP
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- In an isochoric process, heat is added to 10 mol of monoatomic ideal gas whose temperature increases from 273 to 373 K. What is the entropy change of the gas?arrow_forwardDoes the entropy increase for a Carnot engine for each cycle?arrow_forwardA Carnot engine employs 1.5 mol of nitrogen gas as a working substance, which is considered as an ideal diatomic gas with =7.5 at the working temperatures of the engine. The Carnot cycle goes in the cycle ABCDA with AB being an isothermal expansion. The volume at points A and C of the cycle are 5.0103 m3 and 0.15 L, respectively. The engine operates between two thermal baths of temperature 500 K 300 K. (a) Find the values of volume at B and D. (b) How much heat is absorbed by the gas in the AB isothermal expansion? (c) How much work is done by the gas in the AB isothermal expansion? (d) How much heat is given up by the gas in the CD isothermal expansion? (e) How much work is done by the gas in the CD isothermal compression? (f) How much work is done by the gas in the BC adiabatic expansion? (g) How much work is done by the gas in the DA adiabatic compression? (h) Find the value of efficiency of the engine based on the net and heat input. Compare this value to the efficiency of a Carnot engine based on the temperatures of the baths.arrow_forward
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