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Isochoric compression

  1. Feb 6, 2012 #1

    in school we talked about a process called "isochoric compression". i do not really know what they mean by that, since the word" isochoric" refers to a process that has always constant volume, whereas "compression" makes me think of a change in volume. is there anybody who can explain this oxymoron to me?
  2. jcsd
  3. Feb 6, 2012 #2
    What happens inside a sealed container of gas if you cool it down or heat it up?
  4. Feb 6, 2012 #3
    heat up: pressure increases
    cool down: pressure decreases
  5. Feb 6, 2012 #4

    Philip Wood

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    Gold Member

    Yes, compression literally means increasing pressure, so that could include increasing pressure isochorically, by raising the temperature, but 'compression' is so generally associated with squashing (reducing the volume) that I keep off the term 'isochoric compression', preferring something more long-winded, like 'isochoric increase of pressure'. Perhaps I'm just a wimp.
    Last edited: Feb 6, 2012
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