An unknown ideal gas is contained in a vertical piston-cylinder assembly by a pistor kg and having a facial area of 0.02 m². The mass of the gas is 2.5 g, and it initially o volume of 5 liters. The atmosphere exerts a pressure of 100 kPa on the top of the p energy is slowly transferred to the gas via heat transfer from a hot plate, and the (a temperature of the gas increases by 30%. Neglecting friction between the piston ar cylinder wall, determine the change in specific internal energy of the gas, in kJ/kg.
An unknown ideal gas is contained in a vertical piston-cylinder assembly by a pistor kg and having a facial area of 0.02 m². The mass of the gas is 2.5 g, and it initially o volume of 5 liters. The atmosphere exerts a pressure of 100 kPa on the top of the p energy is slowly transferred to the gas via heat transfer from a hot plate, and the (a temperature of the gas increases by 30%. Neglecting friction between the piston ar cylinder wall, determine the change in specific internal energy of the gas, in kJ/kg.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:Problem 1 (Energy balance for closed system)
An unknown ideal gas is contained in a vertical piston-cylinder assembly by a piston of mass 40
kg and having a facial area of 0.02 m². The mass of the gas is 2.5 g, and it initially occupies a
volume of 5 liters. The atmosphere exerts a pressure of 100 kPa on the top of the piston. 2 kJ of
energy is slowly transferred to the gas via heat transfer from a hot plate, and the (absolute)
temperature of the gas increases by 30%. Neglecting friction between the piston and the
cylinder wall, determine the change in specific internal energy of the gas, in kJ/kg.
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