Question

the density of gas molecular mass=60 at critical point is 0.8g/cm3. if Tc=487K. The vandewaal gas constant 'a' is​

Answer 1

Answer:

Vc=0.8060=75cm3mol−1; b=3Vc=25cm3mol−1=0.025Lmol−1

∴Tc=27Rb8a

8214×105=27×0.0821×0.0258×a

⇒a=3.375.