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10 April, 17:34

Gases like air are weightless?

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  1. 10 April, 18:58
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    You can weigh a gas in its gaseous form. Take a strong container and pump all the air out of it, then weigh it. Since there is a vacuum inside the container and a vacuum is weightless, this weight reading is the weight of the container only. Then fill it with the gas and weigh it again, it will be a little heavier.

    The difference between the two weights is the weight of the gas
  2. 10 April, 21:07
    0
    Well they are measured by pressure
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