Physics, 31.07.2019 19:30 Gabysh4105
Steam undergoes an adiabatic expansion in a piston–cylinder assembly from 100 bar, 360°c to 1 bar, 160°c. what is work in kj per kg of steam for the process? calculate the amount of entropy produced, in kj/k per kg of steam. what is the magnitude of the maximum theoretical work that could be obtained from the given initial state to the same final pressure?
Answers: 3
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
Physics, 22.06.2019 13:40
What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th
Answers: 1
Physics, 22.06.2019 14:30
The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
Answers: 1
Steam undergoes an adiabatic expansion in a piston–cylinder assembly from 100 bar, 360°c to 1 bar, 1...
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