Question

The numerical valuse of `P_(c),V_(c),T_(c)` are
`(a)/(27b^(2)),3b,(8a)/(27Rb)` respectively
The compressibility factor Z at critical condintions is `(3)/(8)` .

Answer 1

`(RT_(c))/(P_(c)V_(c))=(R xx 8a xx 27b^(2))/(27Rbxxaxx3b)=(8)/(3)` .