Question

39 grams of benzene (z = 1.4) is filled in a container of volume 10 liter at 27^oC, what is the pressure of container?

(a) 1.7 atm

(b) 1.9 atm

(c) 2.2 atm

(d) 2.5 atm

The question was asked in an international level competition.

My question is taken from Compressibility in division Recycle, Bypass, Purge, Ideal Gases and Real Gases of Basic Chemical Engineering

Answer 1

Correct choice is (a) 1.7 atm

The best I can explain: P = 1.4*0.5*0.0821*300/10 = 1.7 atm.