An air stream containing benzene is treated by a pollution control system, consisting of a hood, ductwork, activated carbon adsorbers, fan, and exhaust stack. The air flow rate is 150 standard m3/min (T = 20 oC and P = 1 atm). The ductwork is operated at T = 30 oC and a static pressure of -2.5 kPa while the barometric pressure is 0.99 atm. The ductwork dimensions are 0.4 m × 0.8 m. Find

Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj