Physics, 24.12.2019 23:31 maddyf7253
The cylinder in the drawing contains 3.00 mol of an ideal gas. by moving the piston, the volume of the gas is reduced to one-fourth its initial value, while the temperature is held constant. how many moles δn of the gas must be allowed to escape through the valve, so that the pressure of the gas does not change?
Answers: 3
Physics, 21.06.2019 22:30, jadalysrodriguez
The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force
Answers: 1
Physics, 22.06.2019 00:30, devaughnnorthcu1565
What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body
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Physics, 22.06.2019 12:50, starr3971
Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.
Answers: 2
The cylinder in the drawing contains 3.00 mol of an ideal gas. by moving the piston, the volume of t...
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