Question

The specific substance is methane.

Plot the variation of compressibility factor (Z=PV/RT) as a function of reduced pressure (PR) for different values of reduced temperature (TR) and for a specified pure substance using the van der Walls equation of state. Consider specific values of Tr of 1.0, 1.1, 1.2,1.3, 1.5, and 2.0 and vary PRfrom 0 to 5.0. Discuss the results characterizing behavior of Z for the specific substance.

Answer 1

(1 and 2) egrot biqunechuan 0.5 1 1.5 2 2.5 3 3.5 4 5 4.5 Reducel Pressure (fr) In the above graph, if the value of Z is greater than 0.6, then the accuracy of the graph is between 1-2%. and if value of z is 0.3-0. 6 then, the accuracy of graph is 4-6%