Hi I was wondering if anyone could help me with this material balance/gas behaviour question. "The product gas from a coal gasification plant consists of 60.0 mol% CO and the balance H2. It leaves the plant at 423.14 kelvins and 2,000 psia. The gas expands through a turbine and is fed to a boiler furnace at 373.15 kelvins and 101.325 kPa at a rate of 424.75 m3/min. Estimate the inlet flow rate to the turbine in m3/h, using Kay’s rule. What percentage error would result from the use of the ideal gas equation at the turbine inlet? " I have no idea how to start so any help would be much appreciated!