he enthalpy variation;
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Please answer the following questions. Thanks in advanced!
Given data:
R=8.32J/KMol
Cp=6.94cal/Kmol
γ=1.4
![Exercise 9 In a cylinder 200 mm in diameter is imprisoned a certain mass of nitrogen under
a pressure of 30 bars absolute and at a temperature of 17°C. The piston, which was initially
100 mm from the bottom of the cylinder, was suddenly released and its movement stopped
after a stroke of 100 mm. We are asked to determine:
(1) the final gas temperature;
2° the variation of internal energy;
(3) the enthalpy variation;
4° the useful work collected on the rod of the piston, the atmospheric pressure of the moment
being 1 bar. The friction and the mass of the piston are neglected.
We give: R-8.32 J/K.mol,y-1,4,Cp-6.94 cal/K.mole.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F96b6c190-af9c-4cfb-bfe0-dca6b5c7508c%2F91407864-8f99-43ef-875d-3f9be5394516%2Ft9c5i9a_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Exercise 9 In a cylinder 200 mm in diameter is imprisoned a certain mass of nitrogen under
a pressure of 30 bars absolute and at a temperature of 17°C. The piston, which was initially
100 mm from the bottom of the cylinder, was suddenly released and its movement stopped
after a stroke of 100 mm. We are asked to determine:
(1) the final gas temperature;
2° the variation of internal energy;
(3) the enthalpy variation;
4° the useful work collected on the rod of the piston, the atmospheric pressure of the moment
being 1 bar. The friction and the mass of the piston are neglected.
We give: R-8.32 J/K.mol,y-1,4,Cp-6.94 cal/K.mole.
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