1.
If the critical constants for a hypothetical gas are Vc=150 cm3 mol−1V_c = 150\,\text{cm}^3\,\text{mol}^{-1}, Pc=50 atmP_c = 50\,\text{atm} and Tc=300 KT_c = 300\,\text{K}, then the radius of the molecule is: [Take R=112 L atm mol−1 K−1R = \dfrac{1}{12}\,\text{L atm mol}^{-1}\,\text{K}^{-1}]