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perfect gas

American  

noun

Physics.
  1. ideal gas.


perfect gas British  

noun

  1. another name for ideal gas

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of perfect gas

First recorded in 1840–50

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The process of shrinkage and rise of temperature goes on so long as they remain in the state of a perfect gas.

From The New Heavens by George Ellery Hale

In an elastic wave propagated from a centre of impulse in an infinitely extended volume of a perfect gas, normal vibrations are alone propagated—as is the case with sound in air.

From The Eruption of Vesuvius in 1872 by Luigi Palmieri

When a perfect gas dilates in a vacuum its entropy increases, and yet the temperature does not change, and the gas has neither been able to give nor receive heat.

From The New Physics and Its Evolution by Lucien Poincaré

Contracting, according to Lane's law, its temperature must rise until its density becomes such that it no longer behaves as a perfect gas.

From Astronomy: The Science of the Heavenly Bodies by David Peck Todd

But steam is not a perfect gas, as is evidenced by the fact that its volume does not increase in a ratio inverse to its pressure.

From Modern Machine-Shop Practice, Volumes I and II by Joshua Rose

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