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College Physics
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ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Question
Calculate the efficiency of the Carnot engine for ideal gas. Consider the figure below for a complete cycle of Carnot engine, where the cycle goes back from ad->ab->bc->cd
Please answer the blanks below. Answer until QC. Part 1/2

Transcribed Image Text:Carnot cycle
Он
TH
02016 Paron Education, Inc.
processes and segment ab & cd are the
Where segments ad & bc are the
processes; and the volumes involved are Va, Vb, Vc, Vd, and the two temperatures TC
and
Sol.

Transcribed Image Text:Since AU = 0, then the heat on segment ab is
QH =
TH I |
The heat on segment cd is
QC = -
TC In |
By inspection, we can say that
vr-1
and
TH
Y-1-
Vr-1
Thus,
Vb/
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- Please solve this question,Only if you have knowledge in this concept. Do not post random solutions.arrow_forwardIn Figure 1, the efficiency of a Carnot engine is listed as a function of thehot-reservoir temperature. The cold-temperature reservoir is unknown.Create a linear plot of the engine efficiency as a function of the hotreservoir temperature. (Notice that I didn’t say plot engine efficiencyversus TH; I said plot the engine efficiency as a function of TH, such thatarrow_forwardHeat of amount 250 J is removed from a heat reservoir at a temperature of 270 K. What is the entropy change of the reservoir? Hint ΔS=ΔS= J/KJ/K. (Use the sign to indicate whether entropy of reservoir increases or decreases.) Submit QuestionQuestion 9 It is found that an engine discharges 50 J while absorbing 85 J each cycle of operation. Hint What is the efficiency of the engine? eff=eff= How much work does it perform per cycle? W=W= Jarrow_forward
- In an isentropic process, the entropy is a constant. By using a schematic diagram, indicate the isentropic process(es) in a typical Carnot Cycle. Explain why they are isentropic.arrow_forwardPlease help mearrow_forward= 2 is taken through a cycle as shown in the figure to the right, which is not necessarily drawn to scale. n moles of an ideal gas with adiabatic index Y The cycle proceeds as follows: 1– 2 is an isobaric compression to V2= Vo/2 2 – 3 is an isochoric process with P3 = 3P0 3 – 4 is an isothermal compression to V4 = Vo/4 4 – 5 is an isochoric heating process 5 – 1 is an adiabatic expansion back to Vo ЗРо Ро Vo/4 Vo/2 Vo (a) at constant pressure, What are Cv, the molar specific heat at constant volume, and Cp, the molar specific heat for this gas? Your answer should be in terms of n, R, T , or a subset of these quantities. (b) ( diagram) in terms of Po, and the temperatures T,, T3 , T4 , and T3 (the temperatures at points 2 – 5) in terms of To. All work must be shown. Find the unknown quantities P4 and P5 (which are the pressures at points 4 and 5 on the (c) Find the work done on the system in terms of n, R, T, , and pure numbers only for the 3, 3 → 4, 4 → 5, and 5 → 1. Make sure to show…arrow_forward
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