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Question on thermodynamics

Former Community Member
Former Community Member
Hello everyone, I have a question on the energy cost of compressing gas.

I didn't find a community about thermodynamics, so I post the question here..


When gas absorbs heat. its volume increases from v1 to v2. When we compress the volume of the same gas from v2 to v1, does the energy required equal to the heat it absorbs? Does the temperature affect the energy required?


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  • 0 in reply to Chris Pearson
    The question you ask is complex and ambiguous. A gas can absorb energy and increase its pressure rather than volume or a mix of both.

    I think you really need to look at a thermodynamics textbook, starting with the ideal gas equation. I would recommend "Thermodynamics: An Engineering Approach", by Cengel and Boles, which is very readable.

    Do not forget, beyond the ideal comes reality and no system is 100% efficient.
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