Question

What is the pressure of CO2 gas with compressibility z = 0.8, if the ideal gas pressure of CO2 is 10 Pa, all other variables are same?

(a) 5

(b) 8

(c) 10

(d) 14

This question was posed to me in class test.

My query is from Compressibility topic in chapter Recycle, Bypass, Purge, Ideal Gases and Real Gases of Basic Chemical Engineering

Answer 1

Right option is (b) 8

For explanation I would say: Pressure of CO2 = 0.8*10 = 8 Pa.