A gas is expandable without limit.
No
Yes, a gas will always fill the container that it is in.
Because gas molecules easily diffuse and fill completely a closed vessel.
A gas will completely fill whatever container it's in as it will diffuse until it's concentration is the same throughout the container.
It will completely fill the container.
In the gas phase, the particles spread out to completely fill their container.
No. The particles in a gas spread out and completely fill their entire container, regardless of the shape or volume of the container.
Do not completely fill the cylinder. Always check the hoses and fittings.
If it seems as though you cannot get the tank to fill completely on an 01 Sienna, it is likely that your gas gauge is not working properly. You are probably actually getting the tank full of gas.
Anywhere from 25 to 31 gallons, depending on the model.
Only if this matter is a gas.
Only a liquid can completely fill its container. While it may seem that a gas could, gas is compressible, so even if the container seems full of a gas, more can be put in, so it is never really full.