Thermodynamics: An Engineering Approach
9th Edition
ISBN: 9781259822674
Author: Yunus A. Cengel Dr., Michael A. Boles
Publisher: McGraw-Hill Education
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Chapter 12.6, Problem 11P
Consider an ideal gas at 400 K and 100 kPa. As a result of some disturbance, the conditions of the gas change to 404 K and 96 kPa. Estimate the change in the specific volume of the gas using (a) Eq. 12–3 and (b) the ideal-gas relation at each state.
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consider an ideal gas at 300 k and 100 kpa . As a result of some disturbance, the conditions of the gas change to 305 k and 96 kpa . Estimate the change in the specific volume of the gas using (a) partial differential [v=v(T,P)] . (b)the ideal -gas relation (P V=RT) at each state.
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An ideal gas at a given state expands to a fixed final volume first at constantpressure and then at constant temperature. How would you calculate the work for each case (show the equation and the P-v diagram for each case)? For which case is the work done greater? Justify your answer.
0.15 m3 of an ideal gas at a pressure of 15 bar and 552 K is expanded isothermally to 4 times the initial volume. It is then cooled to 290K at constant volume and then compressed back polytropically to its initial state. Calculate the net work done and heat transferred during the cycle
Chapter 12 Solutions
Thermodynamics: An Engineering Approach
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