Volume of CO^2

Jul 27, 2003 2 Replies

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Danny 22 years ago

I was trying to work out a method of working out the volume of CO^2 in a cylinder from a given weight, i assume the weights are fairly accurate. Does anyone if my method (on the following paragraph ) know if it is correct?

Taking the assumption that 1 mole of CO^2 will occupy 24 litres of space at STP.

So when one mole of CO^2 weighs 44 grams (0.044 Kg) you must divide the mass of gas in the cylinder by the weight of one mole of CO^2 and then multiply the result by 24

So a 600g (0.6 Kg) cylinder of CO^2 should contain 327.27 litres

Danny

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Gary Coffman 22 years ago

Actually 22.4 liters per mole.

Actually 305.45 liters.

Gary

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Gary Coffman 22 years ago

The method is correct, but note that the gas escaping from the cylinder won't be at STP. It will be much colder. If you want to see the volume you calculated, you'll have to let it warm to room temperature before measuring it.

No problem.

I don't know the answer to that, but I suspect you're right.

Gary

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