PHYSICS OASIS CITY

Constant ‘a’

strength of the attraction between molecules of a particular gas

the lower the critical temperature.

(⬇ IMFA = ⬇ critical temp)

The weaker the IMFA,

Constant ‘b’

size of the molecules of a particular gas

triple point

The temperature and pressure which it can exist at all three states.

critical point

absolute temperature associated is equal to the critical temp and pressure applied is equal to critical pressure

highest possible temperature value at which the substance can exist as a liquid

• temp above this point can no longer be liquified, regardless of the amount of pressure applied

• provides insight into the strength of IMFA

Critical pressure

pressure that must be applied in order to liquify

lower critical temp.

Weaker IMFA,

PT, PV, nRT

Diagrams