Calculate the temperature and density of carbon dioxide in critical state, assuming the gas to be a Van der Waals one.

Explanation

`T_(Cr) = (8)/(27) (a)/(bR) = (8)/(27) xx (3.62)/(.043 xx .082) ~~ 304 K`
`rho_(Cr)= (M)/(3 b) = (44)/(3 xx 43) gm// c.c = 0.34 gm//c.c`.