Adiabatic Process for an Ideal Gas

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Adiabatic Process for an Ideal Gas Prof. Marlon Flores Sacedon Department of Mathematics and Physics College of Arts and Sciences Visayas State University, Visca Baybay City, Leyte, Phiippines

Adiabatic Process for an Ideal Gas No heat transfer, Q = 0

Adiabatic Process for an Ideal Gas Adiabatic process, ideal gas Adiabatic process, ideal gas Adiabatic process, ideal gas

Problem 1. A monatomic ideal gas that is initially at a pressure of 1 Problem 1. A monatomic ideal gas that is initially at a pressure of 1.5x105 Pa and has a volume of 0.0800m3 is compressed adiabatically to a volume of 0.0400m3 (a) What is the final pressure? (b) How much work is done by the gas? (c) What is the ratio of the final temperature of the gas to its initial temperature? Is the gas heated or cooled by this compression? Ans. a) 476 kPa b) 10.6 kJ c) 1.59, heated Problem 2. Two moles of carbon monoxide (CO) start at a pressure of 1.2 atm and a volume of 30 liters. The gas is then compressed adiabatically to 1/3 this volume. Assume that the gas may be treated as ideal. What is the change in the internal energy of the gas? Does the internal energy increase or decrease? Does the temperature of the gas increase or decrease during this process? Explain. Ans. 5.05 kJ, internal energy and temperature both increase

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