Engineering

Engineering, 17.07.2019 23:30, kwilly60

Air is expanded from 500°c and 2000 kpa to 100°c and 100 kpa. assuming the air is an ideal gas, determine the change in specific entropy (in kj/kg*k) of the air using a) constant specific heat (at the average temperature) b) variable specific heat

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Engineering, 26.07.2019 16:10, brebre63

Air is expanded from 2500 kpa and 650°c to 100 kpa and 50°c. assuming constant specific heats, determine the change in the specific entropy of air.

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Engineering, 07.08.2019 19:30, risarod6106

Air enters a compressor at a state of 100kpa and 17°c and exits at a final state of 600kpa and s a. sketch the system in question identifying the system boundary and the energy flows. b. determine the entropy change of the air through the compressor assuming constant specific heats. c. is entropy increasing or decreasing within this system? why? d. sketch a t-s diagram of the process and label the process 1-2. e. now determine the entropy change of the air through the compressor assuming the specific heats vary. f. under what condition would the two values that you calculated for entropy change (constant specific heats and varying constant specific heats) be drastically different from each other?

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Physics, 21.08.2019 04:30, nlaurasaucedop7gfut

Air contained in a cylinder fitted with a piston initially at 2.00 mpa and 2000 °c expands to 0.200 mpa in an isentropic process. assuming the air behaves as a constant specific heat ideal gas, determine the following: a) the final temperature b) the change in specific internal energy c) the change in specific enthalpy d) the change in specific entropy e) the work done per lbm of air during the expansion

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Air is expanded from 500°c and 2000 kpa to 100°c and 100 kpa. assuming the air is an ideal gas, dete...

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