2. The pV-diagram on the right shows a cycle of a heat engine that uses 0.250 mol of an ideal gas with = 1.49. Process ab is adiabatic. (1 atm = 101.3 kPa) a) What is the thermal efficiency of the engine? b) Compare your answer to part a) to the thermal efficiency of a Carnot engine operating between the same two temperature extremes. p (atm) 1.5 0 0.0020 0.0090 V (m

2. The pV-diagram on the right shows a cycle of a heat engine that uses 0.250 mol of an ideal gas with = 1.49. Process ab is adiabatic. (1 atm = 101.3 kPa) a) What is the thermal efficiency of the engine? b) Compare your answer to part a) to the thermal efficiency of a Carnot engine operating between the same two temperature extremes. p (atm) 1.5 0 0.0020 0.0090 V (m

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

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2. The pV-diagram on the right shows a cycle of a heat engine that
uses 0.250 mol of an ideal gas with = 1.49. Process ab is
adiabatic. (1 atm = 101.3 kPa)
a) What is the thermal efficiency of the engine?
b) Compare your answer to part a) to the thermal efficiency of a
Carnot engine operating between the same two temperature
extremes.
p (atm)
1.5
0 0.0020
rail 2022
0.0090
V (m

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