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03: Air is contained in a vertical cylinder fitted with frictionless piston and a set of stops. The piston cross -sectional area is (0.2 m²) and the air inside is initially at (200 kPa, 500°C). The air is then cooled as a result of heat transfer to the surroundings. a) What is the temperature of the air inside the cylinder when the piston reaches the stops? b) The cooling is now contained until the temperature reaches (20°C), what is the pressure at this state? Ans. [a) 113.4 °C, b) 151.7 kPa] Air 0.25 0.25

03: Air is contained in a vertical cylinder fitted with frictionless piston and a set of stops. The piston cross -sectional area is (0.2 m²) and the air inside is initially at (200 kPa, 500°C). The air is then cooled as a result of heat transfer to the surroundings. a) What is the temperature of the air inside the cylinder when the piston reaches the stops? b) The cooling is now contained until the temperature reaches (20°C), what is the pressure at this state? Ans. [a) 113.4 °C, b) 151.7 kPa] Air 0.25 0.25

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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03: Air is contained in a vertical cylinder fitted with frictionless piston and a set of stops. The piston cross -sectional area is (0.2 m²) and the air inside is initially at (200 kPa, 500°C). The air is then cooled as a result of heat transfer to the surroundings. a) What is the temperature of the air inside the cylinder when the piston reaches the stops? b) The cooling is now contained until the temperature reaches (20°C), what is the pressure at this state? Ans. [a) 113.4 °C, b) 151.7 kPa] Air 0.25 0.25
Transcribed Image Text:03: Air is contained in a vertical cylinder fitted with frictionless piston and a set of stops. The piston cross -sectional area is (0.2 m²) and the air inside is initially at (200 kPa, 500°C). The air is then cooled as a result of heat transfer to the surroundings. a) What is the temperature of the air inside the cylinder when the piston reaches the stops? b) The cooling is now contained until the temperature reaches (20°C), what is the pressure at this state? Ans. [a) 113.4 °C, b) 151.7 kPa] Air 0.25 0.25
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