A salt solution is prepared in a graduated cylinder using 400 g NaCl and 1000 g water at 20 °C. Solubility of NaCl at 20 °C is 357 g NaCI/1000 water then some NaCl precipitates at the bottom of the cylinder. The density of the saturated solution is 1.2 g/ml. The diameter of the graduated cylinder is 5cm. What should be height of the cylinder. Determine concentration profile of NaCl in the cylinder from the bottom to the surface of the solution versus time.

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges

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