Arigid, insulated vessel is divided into two compartments connected by a valve. initially, one compartment, occupying 1.0 ft3, contains air at 50 lbf/in2, 725or, and the other, occupying 2.0 ft3, is evacuated. the valve is opened and the air is allowed to fill both volumes. assume the air behaves as an ideal gas and that the final state is in equilibrium. determine the final temperature of the air, in or, and the amount of entropy produced, in btu/or. determine the amount of entropy produced, in btu/or

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