|Feb19-13, 06:39 PM||#1|
Gas in a gallon of hydrogen
I'm just wondering how many cubic feet of gaseous hydrogen are in one gallon of liquid hydrogen. I know I'm not being too specific and that many variables are involved (temperature, atmospheric pressure... etc), but approximately how many are in a gallon? And yes, I have checked Google. I have found nothing useful.
I wish to perform small scale experiments with hydrogen as a lifting gas in small balloons, in case you're curious.
Sorry for not using metric, I'm used to U.S.
|Feb19-13, 07:41 PM||#2|
Well, the density of liquid hydrogen is 67.80 kg/m³. From this value, you can find the number of moles of hydrogen in a gallon of liquid hydrogen, and from that number you can calculate the volume of gaseous hydrogen at your specified temperature and pressure.
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