Helium gas in an ideal Otto cycle is compressedfrom 208C and 2.5 to 0.25 L, and its

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Helium gas in an ideal Otto cycle is compressedfrom 208C and 2.5 to 0.25 L, and its temperature increases by an additional 7008C during the heat addition process. The temperature of helium before the expansion process is
(a) 17908C
(b) 20608C
(c) 12408C
(d) 6208C
(e) 8208C
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Thermodynamics An Engineering Approach

ISBN: 978-0073398174

8th edition

Authors: Yunus A. Cengel, Michael A. Boles

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