Question

How many grams of C2H6 (z = 1.4) is present in the container at 27^oC and 5 atm and with volume 10 liter?

(a) 20 g

(b) 30.4 g

(c) 40.6 g

(d) 50.8 g

The question was posed to me in examination.

Enquiry is from Compressibility in section Recycle, Bypass, Purge, Ideal Gases and Real Gases of Basic Chemical Engineering

Answer 1

The correct answer is (c) 40.6 g

The best explanation: n = 5*10/(1.4*0.0821*300) = 1.45, mass of C2H6 = 1.45*28 = 40.6 g.