The volumetric analysis of a mixture of a mixture of gases is 30 percent oxygen, 40 percent nitrogen 10 percent dioxide, 20 percent methane. This mixture flows through a 1-in-diamter at 1500 psia and 70F with a velocity of 10 ft/s. Determine the volumetric mass flow rates of this mixture (a) treating it as an idea gas mixture, (b) using a compressibility factor based on Amagad's law of volumes and (c) using kay's psuedocritical pressure and temperature.