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The chemical signature for air is H20, or 2 parts Hydrogen and 1 part Oxygen. As each of these elements has mass, even in a gaseous state, the short answer is that air weighs 0.070 lbs oer cubic foot. So at one atmosphere of 14.7 PSI (that is the pressure of the air around us) when the tire is flat, if you knew the volume of the tire, you could compute the weight of the air in the tire.

Now, if the tire were inflated to 26 PSI, it would be at 1.77 atmosphere, so the weight of the air in the tire when inflated would more than when it is flat.

No, H2O is the chemical signature for WATER.

Otherwise the answer would be correct.

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Q: Does a car tire weigh more with air or the same when its flat and tire is on a rim?
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Related questions

What weighs more a flat or full tire?

A full tire is heavier than a flat tire. When a they are both flat they weigh the same but added air makes the full tire heavier.


Does a car tire weigh more with air or the same when it's flat The tire is on a rim?

More, as long as the tire doesn't expand in such a way the the tire pressure changes only slightly (similar to a balloon). In such a case the tire would theoretically weigh more, but would be undetectable by common measuring devices, such as a spring loaded scale.


What is heavier an inflated tyre or a flat tyre?

Depends on how you look at it. Tire + lots of pressurized air inside will weigh a tad more than tire with only a little air inside. But the actual tire casing will weigh the same whether it's inflated or not.


How much more does the air in a tire weigh at full psi compared to when the tire is empty?

Exactly the same -


How much does an inflated car tire weigh?

The same as a tire that has not been inflated.


Why does a flat tire spin faster?

A flat tire spins faster for a couple of reasons. This could happen because there is no force holding it back. A soft or flat tire has a smaller circumference which forces the tire to spin faster to keep up the same speed.


Clunking noise coming from the left front end kinda sounds like a flat tire would but the tire isn't flat what causes noises like this?

sounds like a flat spotted tire or a heavily cupped tire. runs hands around tire and check for weird wear on surface of tire. almost need more info as well.


Will a tire with a flat spot recover?

No, once it has a flat spot it will always have a flat spot. Replace the tire.


What is the analogy for jack flat tire hammer?

jack flat tire hammer


Why is the force on the steering greater when the tire is flat?

There is more surface area contact between the road and the flat tire translating into more friction between the two surfaces, which increases the amount of force required to change direction.


How do you do a tire repair on a flat tire?

To repair a flat tire you first need to remove the tire from the rim. Once removed inspect the tire for the damager and repair the puncture.


How many pounds does a tire weigh?

depends on what kind of tire you are talking about like a bike tire or car tire or a motorcycletire slash /dirt bike tire. be more specific next time. bub!