Question

Use the Redlich-Kwong equation of state to compute the Argon vapor and liquid densities at phase coexistence at the temperature T=142.69 K and pressure P=35.00 atm.

Redlich-Kwong constants for Ar: A=16.566 L2 atm mol−2 K^(1/2) and B=0.022062 L mol−1 .

Answer 1

where P= pressure in atm, R = universal constant, V= volume in L, A nd B= Redlich-Kwong constants

We need to calculate for V