A steady stream of equimolar N2 and CO2 mixture at 100 kPa and 18C is to be

Question:

A steady stream of equimolar N2 and CO2 mixture at 100 kPa and 18°C is to be separated into N2 and CO2 gases at 100 kPa and 18°C. Determine the minimum work required per unit mass of mixture to accomplish this separation process. Assume T0 = 18°C.