Ideal Gas - The Ideal Gas and Incompressible Substance...

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ME 2124 © Al Kornhauser The Ideal Gas and Incompressible Substance Equations of State Equations of state that accurately describe substance behavior over a wide range of pressures, temperatures, and specific volumes are quite complicated. For a limited range of conditions, however, a much simpler equation is often adequate. The two simplest and most useful equations are those of the ideal gas and incompressible substance . Ideal Gas The ideal gas equation of state was developed before many other concepts of thermodynamics were developed. In the 1660’s, Robert Boyle did experiments on air and discovered what we now know as Boyle’s Law : V P 1 ( T , mass m constant) In 1802, Joseph-Louis Gay-Lussac did experiments on oxygen, nitrogen, hydrogen, carbon dioxide, and air to discover what we now know as Gay-Lussac’s Law : REF T T V ( P , m constant) Furthermore, while the proportionality between volume and temperature depended on the gas, the reference temperature was the same for all gases . We now know that T REF is the absolute zero of temperature, 0 K = 0 R = -273.15 ° C = -459.67 ° F. About 1810, Amadeo Avogadro combined chemical reactions
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This note was uploaded on 04/10/2009 for the course ME 2124 taught by Professor Uzgoren during the Spring '08 term at Virginia Tech.

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Ideal Gas - The Ideal Gas and Incompressible Substance...

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