Physics, 18.07.2020 22:01 FlyToTheGalaxy
A closed, rigid tank fitted with a paddle wheel contains 0.1 kg of air, initially at 300 K, 0.1 MPa. The paddle wheel stirs the air for 20 minutes, with the power input varying with time accordingto W = -10t, where W is in watts and t is time, in minutes. The final temperature of the air is 1060K. Assuming ideal gas behavior and no change is kinetic or potential energy, determine for the air(a) the final pressure, in MPa, (b) the work, in kJ, and (c) the heat transfer, in kJ.
Answers: 2
Physics, 22.06.2019 08:30
Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.
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A closed, rigid tank fitted with a paddle wheel contains 0.1 kg of air, initially at 300 K, 0.1 MPa....
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