⦁ A secondary school has a population of 1500 students and 30 standard classrooms. Assuming a 5-day class week with solid waste pickups on Wednesday and Friday before class starts in the morning, determine the size of storage container required. Assuming waste is generated at a rate of 0.11 kg/cap. day plus 3.6 kg per room and that the density of uncompacted waste is 120 kg/m3. Standard container sizes (m3) are as follows: 1.5, 2.3, 3.0 and 4.6.

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