3-89 Carbon dioxide gas enters a pipe at 3 MPa and 500 K at a rate of 2 kg/s. CO, is cooled at constant pressure as it flows in thepipe, and the temperature of the CO2 drops to 450 K at the exit. Determine the volume flow rate and the density of carbon dioxide at the inlet and the volume flow rate at the exit of the pipe using (a) the ideal-gas equation and (b) the generalized compressibilitychart. Also, determine (c) the error involved in the first case.

Fig: 1

Fig: 2

Fig: 3