Q3 : (Section A) Air in a cylinder (area 0.2 m²) compress by a piston from its total height of 2 m to stop height of 1 m. The initial state of the air is P1 = 200 kPa and %3D T1 = 500 •C. Find the properties of the air at: (1) after compression (state 2); (2) after cooling to temperature 20 °C (state 3). Make a table as below: After compression After Cooling Variable Initial state (State 2) (State 3) Temperature 773 •C Pressure 200 kPa Volume 0.4 m3

Q3 : (Section A) Air in a cylinder (area 0.2 m²) compress by a piston from its total height of 2 m to stop height of 1 m. The initial state of the air is P1 = 200 kPa and %3D T1 = 500 •C. Find the properties of the air at: (1) after compression (state 2); (2) after cooling to temperature 20 °C (state 3). Make a table as below: After compression After Cooling Variable Initial state (State 2) (State 3) Temperature 773 •C Pressure 200 kPa Volume 0.4 m3

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter20: Kinetic Theory Of Gases

Section: Chapter Questions

Problem 42PQ

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Concept explainers

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.

Question

Q3 : (Section A) Air in a cylinder (area 0.2 m²) compress by a piston from its total
height of 2 m to stop height of 1 m. The initial state of the air is P1 = 200 kPa and
T1 = 500 •C. Find the properties of the air at: (1) after compression (state 2); (2)
after cooling to temperature 20 °C (state 3). Make a table as below:
After Cooling
After compression
Variable
Initial state
(State 2)
(State 3)
Temperature
773 •C
Pressure
200 kPa
Volume
0.4 m³

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