A vertical piston-cylinder arrangement shown below with a piston mass of 60 kg with a face area of 150 cm2, contains 5 grams of air. The initial volume occupied by the air is 6L. A decrease in internal energy amounting to 2.0 kJ occurs because of the temperature difference between the surroundings and volume inside the cylinder that caused the volume to decrease by 3L. The atmospheric pressure at the top of the piston is 101kPa. Neglect the friction effects between the surface of the piston and the cylinder. Determine the heat transferred of air in kJ/kg.
A vertical piston-cylinder arrangement shown below with a piston mass of 60 kg with a face area of 150 cm2, contains 5 grams of air. The initial volume occupied by the air is 6L. A decrease in internal energy amounting to 2.0 kJ occurs because of the temperature difference between the surroundings and volume inside the cylinder that caused the volume to decrease by 3L. The atmospheric pressure at the top of the piston is 101kPa. Neglect the friction effects between the surface of the piston and the cylinder. Determine the heat transferred of air in kJ/kg.
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter2: Matter And Energy
Section: Chapter Questions
Problem 27RQ: How many Btu/h would be produced in a 12-kW electricheater?
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A vertical piston-cylinder arrangement shown below with a piston mass of 60 kg with a face area of 150 cm2, contains 5 grams of air. The initial volume occupied by the air is 6L. A decrease in internal energy amounting to 2.0 kJ occurs because of the temperature difference between the surroundings and volume inside the cylinder that caused the volume to decrease by 3L. The atmospheric pressure at the top of the piston is 101kPa. Neglect the friction effects between the surface of the piston and the cylinder. Determine the heat transferred of air in kJ/kg.
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