The expansion ratio of a liquefied and cryogenic substance is the volume of a given amount of that substance in liquid form compared to the volume of the same amount of substance in gaseous form, at room temperature and normal atmospheric pressure.
[1] If a sufficient amount of liquid is vaporized within a closed container, it produces pressures that can rupture the pressure vessel.
Hence the use of pressure relief valves and vent valves are important.
[2] The expansion ratio of liquefied and cryogenic from the boiling point to ambient is: This physical chemistry-related article is a stub.
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