DIYbanter - View Single Post

wrote:
Is a pressurized air object heavier?
In other words, is an object heavier when it contains compressed air
than when it's empty? For example, if I have a tire and weigh it
before pumping it full of air, will it be heavier after it's pumped
up? I say NO. A friend of mine insists it will be heavier once it's
filled with air. Who is right?

The pressurized object is heavier. Ask anybody who works in a scuba shop...
full tanks weigh a good 5-6 lbs more than empty ones.

Your friend is correct.

--
Mortimer Schnerd, RN

VE