Quote:
Originally Posted by Sparkle
the thermodynamic energy that was used to create it in the first place (assuming 100% efficiency), is then released in the form of pressure through a process called isobaric expansion. Its just a release of stored potential energy.
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Major snippage of your highly informative post .... this little chunk here is what I was thinking the whole thing might be about, but it just seemed counter-intuitive to store energy in a system by removing heat (an easily understood form of energy) from it.