E2.20 Liquid Density

Example 2.20: Estimate density of liquid benzene at 290 °K and 100 atm. The following data apply: T_c = 561.65 °K, P_c = 47.7 atm, ω = 0.205, ρ_c = 0.304 g/cm³, ρ^sat = 0.8826 g/cm³,

M = 78.11, R = 82.06 (atm·cm³)/(mol·°K), P^sat = 0.0849 atm

Solution

Critical compressibility factor of benzene, Z_c

Reduced temperature, T_r = 0.516.

Temperature function f₁(T_r) (Table 2.1) = 0.0282.

N (Equation 2.63):

Density of liquid benzene, ρ (Equation 2.62):