Question

A canister of gas, as used in camping stoves, contains mainly butane under sufficient pressure to cause it to liquify partially, would you expect the gas in the canister to behave as an ideal gas? Explain

Answer 1

No, since for it to be an ideal gas it should follow the ideal gas law, PV=nRT right?

Now if the gas is under so much pressure that it's liquifying, won't that mean a change in pressure, volume, or temperature change the number of moles of gas?

Answer 2

We can also look upon it this way: ideal gasses are point masses meaning they are infinitesimal small, in addition to that we also assume they are not interacting with each other, which we know molecules in liquids do...