I'm not sure what your asking, but I am assuming you are asking in what type of units air pressure is measured. In The USA pressure is measured in P.S.I. (Pounds per Square Inch). I'm not too sure about other areas in the world.
The size is different. This depends on the air pressure in the pneumatic system.
If you let the air out of a balloon, it will deflate and decrease in size as the pressure inside the balloon equalizes with the external pressure.
When you blow air into a balloon, the pressure of the air you are adding is higher than the surrounding air pressure inside the balloon. This increase in pressure causes the rubber of the balloon to stretch and expand. As you continue to blow more air, the balloon grows in size until the pressure inside the balloon equalizes with the pressure outside.
15 inches long
Tire air pressure is dependent upon the size and type of tire. The 1999 Nissan Altima standard tire air pressure is 32 pounds.
You are forcing more air into the same size space. The oxygen molecules get closer and closer as you continue to push air in. Eventually the tire will give way and release the pressure.
The shape and size of a balloon change when filled with air or water because the molecules of the substance fill the balloon and exert pressure on its walls. This pressure causes the balloon to expand and take on the shape of its contents. The volume of the balloon increases as more air or water is added, changing its size accordingly.
The chip bag is sealed, and no air can get inside it. The air pressure decreases as you get higher, so the air inside the bag expands to equalize the pressure on the outside of the bag.
Because the bigger tank provides more air capacity which gives you more air and more pressure.
When you take a breath, the diaphragm contracts and when it does, it drops down. This increases the size of the thoracic cavity. Air pressure is now lower in it than outside. Air moves from a high pressure to a low pressure. Air rushes in and the reverse happens when the diaphragm relaxes.
As a balloon rises in the air, the volume or size of the balloon increases. This is because the atmospheric pressure decreases as the balloon gains altitude, causing the air inside the balloon to expand and the balloon to inflate.
It is different in that the seas don't have air pressure. No air; no air pressure.