Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Transcribed Image Text:SI UNITS
8.1 The execution of a cyclic process by a
closed system involves the following four heat
interactions: Q%3=
Q.=-40 kcal. Concurrently, four work in-
teractions occur during the cyclic process:
W 200, Wa =-124, W, 100, W.*
? kJ. Find (a) the fourth work W, and (b) the
efficiency e. (c) What are AU and AS for this
cyclic process?
50, Q2 = -75, Q, 125,
%3D
%3D
Ans. (a) 75 kJ, (b), 34.26%, (c) 0.
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