Question

4. a) Water has critical pressure and specific volume of 22.064 MPa and 0.003155 m/kg, respectively. Its critical temperature is 647 K. Assuming that you do not know the temperature, try to find this temperature using methods you learned in the class. Which one is most accurate with how much error? b) When you boil water in a kettle to enjoy hot coffee, the boiling is a constant pressure heating process, specifically at one atmosphere. Plot the thermodynamic property changes of the water in T-v diagram. You are required to plot it together with the saturated liquid and vapor lines, and the critical point. Using Excel and its built-in plotter is highly recommended

Answer 1

Cruti col VC = Zb Po alue 2 et 3 R 2x2

C and 3x287 J/ OJr ett Percentage Erro 644-646 80 Xl0o 0.0 30 8 / y ideal g quaon

So approprite solution u b Von der Critcol Point 3 LQuit vapour Lia uid apour obs 2 Spe cilic volume