Physics, 13.08.2021 01:00 skykopystecky795
mass stays the blank for an object even when blank or blank gravitational forces change the blank of an object
Answers: 3
Physics, 22.06.2019 03:30
As part of an industrial process, air as an ideal gas at 10 bar, 400k expands at steady state through a valve to a pressure of 4 bar. the mass flow rate of air is 0.5 kg/s. the air then passes through a heat exchanger where it is cooled to a temperature of 295k with negligible change in pressure. the valve can be modeled as a throttling process, and kinetic and potential energy effects can be neglected. (a) for a control volume enclosing the valve and heat exchanger and enough of the local surroundings that the heat transfer occurs at the ambient temperature of 295 k, determine the rate of entropy production, in kw/k. (b) if the expansion valve were replaced by an adiabatic turbine operating isentropically, what would be the entropy production? compare the results of parts (a) and (b) and discuss.
Answers: 3
Physics, 22.06.2019 06:10
Which transition by an electron will release the greatest amount of energy? oa ob oc od
Answers: 2
Physics, 22.06.2019 13:30
6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.
Answers: 3
mass stays the blank for an object even when blank or blank gravitational forces change the blank of...
History, 15.10.2019 05:00
Mathematics, 15.10.2019 05:00
History, 15.10.2019 05:00
Physics, 15.10.2019 05:00
Mathematics, 15.10.2019 05:00
Mathematics, 15.10.2019 05:00
Mathematics, 15.10.2019 05:00
Mathematics, 15.10.2019 05:00
Social Studies, 15.10.2019 05:00
Mathematics, 15.10.2019 05:00
Advanced Placement (AP), 15.10.2019 05:00
Mathematics, 15.10.2019 05:00