1.A mixture of 75 mol% N2, 20 mol% O2, and the balance CO2 is at a pressure of 11 MPa and a temperature of -90C. (a) Determine the molar volume of the gas mixture (m3/kmol) using Pitzer-Curl method

(b) 1 kmol of the same gas mixture (described in part (a)) is contained in a rigid tank at 183 K, with the volume of the tank being 0.75 m3. Determine the pressure (kPa) of the mixture using the Law of Corresponding States and the compressibility chart.