Question

What is it meant by an ideal gas? Under which conditions does a real gas behave most like an ideal gas?

Thank you in advance!!

Answer 1

ideal gas is a gas in which there is no interaciton of any kind between molecules.

There is no loss in collision between molecules; therefore, they can be modeled with the ideal gas law

There are some definitions which I find redundant, but are valid. An ideal gas is a gas that will be modeled 100% according to the ideal gas law

If we want to stop interaciton between molecules, we need to avoid those being near each other

If we increase V; then we decrease collisions

if we increase P; we force higher interaction and collision, therefore, avoid high P

high T will make the contianer expand, therefore favour high T

Conditions for a REAL gas to behave as IDEAL:

- Low P

- High T