Engineering, 25.03.2020 05:20 scbmaster351
3- A cylinder with 0.4kg of Nitrogen gas at 27ºC keeps under pressure by a frictionless piston. Weight of this piston will increase pressure to 0.35atm more than ambient pressure (which is 1atm) at 27ºC. Therefore, at the beginning Nitrogen is at 1.35atm and at equilibrium with surrounding. Consider these four processes which is happening in order:
A) System is reaching equilibrium after merging into a container of steam.
B) A variable force slowly pushing piston while temperature stay constant at 0ºC and Nitrogen compressed to half of its initial volume. At this point piston will stop by stoppers.
C) Taking the system out from steam container in order to reach equilibrium with surrounding.
D) Now remove stoppers until system reaches completely to equilibrium with surrounding.
Determine Q, W, ΔU, ΔH for the system. (consider Nitrogen as ideal gas)
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3- A cylinder with 0.4kg of Nitrogen gas at 27ºC keeps under pressure by a frictionless piston. Weig...
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