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How do we weigh gases?Is there any instrument to weigh gases?

How do we weigh gases?Is there any instrument to weigh gases?

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2 Answers

sushant singh
66 Points
12 years ago

hey kavya, 

If you weigh an "empty" compressed gas cylinder and fill it with high pressure gas, it will then weigh more on an ordinary scale since you are weighing the gas in the cylinder. This will be demonstrated with a single molecule moving vertically, but the same result is obtained with any number of molecules moving in random directions so long as the collisions between them are elastic collisions. By giving the newtons law and  evidence of Avogadro’s Theory.

Sudhanshu Shekhar
7 Points
12 years ago

No!

We can measure the pressure, volume and temperature of gases and hence calculate the number of moles of gas...

hence we can know the mass of gas present......

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