A sample of an ideal gas goes through the process shown inFigure P20.32. From A to B, the pressureincreases from 1 atmosphere to PB=3.06 atmospheres andthe process is adiabatic; from B to C, it isisobaric with 335.16 kJ of energy entering the system by heat. FromC to D, the process is isothermal; fromD to A, it is isobaric with 361.77 kJ of energyleaving the system by heat.Figure P20.32How much heat enters the system along the isothermal pathCD?kJHow much work is done by the system after one complete cycle?kJWhat is the efficiency of the cycle?What would be the efficiency of a Carnot engine operating betweenthe temperature extremes of this cycle?Determine the difference in internal energy, Eint, B -Eint, A.kJ

As the system is isothermally isolated and is allowed to expand freely. In such a process no…

Answered: A sample of an ideal gas goes through…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter18: Heat Engines, Entropy, And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 58P

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A sample of an ideal gas goes through the process shown in Figure P20.32. From A to B, the pressure increases from 1 atmosphere to P_B=3.06 atmospheres and the process is adiabatic; from B to C, it is isobaric with 335.16 kJ of energy entering the system by heat. From C to D, the process is isothermal; from D to A, it is isobaric with 361.77 kJ of energy leaving the system by heat.

cycle.p20-32.jpg
Figure P20.32

How much heat enters the system along the isothermal path CD?
kJ
How much work is done by the system after one complete cycle?
kJ
What is the efficiency of the cycle?

What would be the efficiency of a Carnot engine operating between the temperature extremes of this cycle?

Determine the difference in internal energy, E_{int, B} - E_{int, A}.
kJ

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