P a Pa P,/2 b 2V.
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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Question
c.) Calculate the work done on the gas over the entire cycle (a-b-c-a)
d.) What is the change in thermal energy of the gas over the full cycle (a-b-c-a). Explain/Justify your answer.
e.) Which process/processes (a-b, b-c, or c-a) require heat to be added to the gas? Explain/Justify your answer.
f.) Calculate the change in thermal energy of the gas (in Joules) during process c-a.

Transcribed Image Text:2. A heat engine contains a monatomic, ideal
gas
with the
cycle shown in the pV diagram. The cycle begins at point
a with p,- latm, V,= 10L, and T= 300K. The ideal gas
taken clockwise around the cycle a,b,c, a. The
is
a
process
a-b
Pa
forms a linear p-V curve between points a and b (ie, it is
not an isotherm or an adiabat)
P,/2
b
(101325 Pa = 1 atm)
(IL= 0.001 m³)
(R=8.31J/molK
Cv = 12.5 J/molK
= 0.0821 atmL/mblK)
V
2V
Ср 3 20.8 J/molK
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