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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 relation between the temperature, pressure, and weight of steam is not quite proportional to the volume, because steam is not a perfect gas, and does not, therefore, strictly follow Mariotte’s law.

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

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 Rose, Joshua

Lastly, the pressure itself will vary proportionally with the absolute temperature, as defined by the theory of a perfect gas, and will serve to determine it.

From Scientific American Supplement, No. 441, June 14, 1884. by Various

This expansion, nevertheless, causes a fall in the temperature, because the gas in the experiment is not a perfect gas, and, by an ingenious process, the refrigerations produced are made cumulative.

From The New Physics and Its Evolution by Poincaré, Lucien

The usual manner of testing the expansion curve of a diagram is to compare it with a curve representing Mariotte’s law for the expansion of a perfect gas.

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

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