Reference no: EM13950515
1. A gas in a piston-cylinder assembly undergoes a process for which the relationship between pressure and volume is pV2 5 constant. The initial pressure is 1 bar, the initial volume is 0.1 m3, and the final pressure is 9 bar. Determine
(a) the final volume, in m3, and (b) the work for the process, in kJ.
2. Carbon dioxide (CO2) gas within a piston-cylinder assembly undergoes an expansion from a state where p1 5 car with w 5 3550 lbf, A 5 23.3 ft2, and Cd 5 0.34, and 20 lbf/in.2, V1 5 0.5 ft3 to a state where p2 5 5 lbf/in.2, V2 5 when f 5 0.02 and r 5 0.08 lb/ft3
(a) determine the power required, in hp, to overcome rolling resistance and aerodynamic drag when V is 55 mi/h.
(b) plot versus vehicle velocity ranging from 0 to 75 mi/h
(i) the power to overcome rolling resistance, (ii) the power to overcome aerodynamic drag, and (iii) the total power, all in hp. What implication for vehicle fuel economy can be deduced from the results of part (b)?
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: 1. A gas in a piston-cylinder assembly undergoes a process for which the relationship between pressure and volume is pV2 5 constant. The initial pressure is 1 bar, the initial volume is 0.1 m3, and the final pressure is 9 bar. Determine
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