Engineering, 13.09.2019 23:30 ladya1613
Complete the demonstration of the equivalence of the clausius and kelvin-planck statements of the second law given in sec. 5.2 by showing that a violation of the kelvin-planck statement implies a violation of the clausius statement. an inventor claims to have developed a device that undergoes a thermodynamic cycle while communicating thermally with two reservoirs. the system receives energy q c from the cold reservoir and discharges energy q h to the hot reservoir while delivering a net amount of work to its surroundings. there are no other energy transfers between the device and its surroundings. evaluate the inventor's claim using (a) the clausius statement of the second law, and (b) the kelvin-planck statement of the second law.
Answers: 3
Engineering, 04.07.2019 18:10
Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false
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Engineering, 04.07.2019 18:10
Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux
Answers: 3
Engineering, 04.07.2019 18:10
What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information
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Engineering, 04.07.2019 18:20
Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis
Answers: 1
Complete the demonstration of the equivalence of the clausius and kelvin-planck statements of the se...
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