Data for the laboratory filtration of CaCO3 slurry in water at 298.2 K (25°C) are reported as follows at a constant pressure (-Ap) of 338 kN/m2. The filter area of the plate-and-frame press was A= 0.0439 m2 and the slurry concentration was cs = 23.47 kg /m3. Calculate the constants α and Rm from the experimental data given, where t is time in s and V is filtrate volume collected in m3.

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