Measuring the weight of gas in an inflated balloon

In summary, the method for measuring the weight of gas in an inflated balloon involves calculating the mass of the balloon and subtracting it from the total weight of the balloon while it is floating in the atmosphere. This involves knowing the volume of the balloon, the density of the surrounding air, and the weight of the deflated balloon. The equation for this calculation is tare = B - VA, where tare is the weight measurement and B, V, and A are the known variables. However, it should be noted that the weight measurement can be affected by the gas composition and other factors.
  • #1
prashantakerkar
43
0
What could be the method for measuring weight of gas in inflated balloon?

Thanks & Regards,
Prashant S Akerkar
 
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  • #2
To calculate the mass of the gas in the balloon, you will need to know:
1) V: The volume of the balloon.
2) A: The density of the ambient air (roughly 1.24 Kg/M^3)
3) B: The mass of the balloon itself (when deflated).
4) M: The mass as of the balloon as measured (positive or negative) as it floats in the atmosphere.

So your tare will be the volume of B-VA. That should be subtracted from the weight measurement.
 
  • #3
prashantakerkar said:
What could be the method for measuring weight of gas in inflated balloon?

Thanks & Regards,
Prashant S Akerkar

Are you trying to determine the weight of the gas in the balloon or its mass?
 
  • #4
Thanks.

Weight of gas in the balloon.

Any mathematical equation derived for the same?

Thanks & Regards,
Prashant S Akerkar
 
  • #5
prashantakerkar said:
Weight of gas in the balloon.
what is the gas ?
that will directly affect the results
 
  • #6
Thanks.

The air which we inflate the balloon with pump or mouth.

Air constitutes 80% Nitrogen, 18% Oxygen, some % of Carbon dioxide, inert gases.

How we can calculate the weight of the gas (air) for the inflated balloon?

Any mathematical equation derived for the same?

Thanks & Regards,
Prashant S Akerkar
 
  • #7
Thanks.

To illustrate,

http://www.ekataweighingmachines.com/gas.html

Measuring the weight of the gas cylinder before inserting the Lpg gas and then measuring the weight of the gas cylinder after the gas is filled in the cylinder.

Now how to measure the weight of the gas (air) filled up in the inflated balloon by air pump or by mouth?

Thanks & Regards,
Prashant S Akerkar
 
  • #8
Thanks.

The above is a example of LPG gas filled in cylinder.
Cylinder has weight calculated before inserting LPG gas.
Cylinders total weight is calculated after LPG gas is inserted.

Similarly can we calculate the weight of balloon before the air (gas) is added?

Similarly can we calculate the weight of balloon after the air (gas) is added?

What will be the weight of the gas filled in the inflated balloon?

Any mathematical equation derived for the same?

Thanks & Regards,
Prashant S Akerkar
 

FAQ: Measuring the weight of gas in an inflated balloon

1. How do you measure the weight of gas in an inflated balloon?

The weight of gas in an inflated balloon can be measured using a scale. The inflated balloon is first weighed on the scale, and then the weight of the deflated balloon is subtracted from the total weight to determine the weight of the gas inside.

2. What units are typically used to measure the weight of gas in a balloon?

The weight of gas in a balloon is usually measured in either grams or kilograms. In some cases, it may also be measured in pounds.

3. Does the type of gas affect the weight of the balloon?

Yes, the type of gas used to inflate the balloon can affect its weight. For example, helium is lighter than air, so a balloon filled with helium will weigh less than a balloon filled with air.

4. How does the temperature of the gas inside the balloon affect its weight?

The weight of gas inside a balloon is directly proportional to its temperature. This means that as the temperature of the gas increases, so does its weight. Therefore, it is important to take the temperature of the gas into account when measuring the weight of a balloon.

5. Is it possible to measure the weight of a deflated balloon and use it to calculate the weight of the gas inside?

Yes, it is possible to measure the weight of a deflated balloon and use it to estimate the weight of the gas inside. However, this method may not be as accurate as directly measuring the weight of the inflated balloon and subtracting the weight of the deflated balloon.

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