* Henry’s Law air(1)/water(2) VLE x21 : y2 P = x2 P2sat  y2 = P2sat / P (approximation) x10 ; x1 = ? yi P = xi Hi : Henry’s Law Ex 10-2) CO2 (1) / water (2) system at 10 oC H1 = 990 bar at 10 oC, x1 = ?, y2 = ? y1 P = x1 H1 , y2 P = x2 P2sat P = x1 H1 + x2 P2sat P2sat = 0.01227 bar  steam table, Assume x1 = 0.01  P = 9.912 bar x1 = P / H1 y1 = P / H1 = 0.01 : Assumption is correct. y1 1 y2 = x2 P2sat / P = 0.0012 y1 =0.9988  1

a) x1 = 0.25 , T = 318.15K → P, yk P1sat = 44.51 kPa, P2sat = 65.64 kPa b) y1 = 0.60 , T = 318.15K → P, xk

(c) P = 101.33 kPa , x1 = 0.85 → T, yk T1sat = 337.71 , T2sat = 330.08 K at 101.33 kPa

P = 101.33 kPa , y1 =.0.4 → T , xk

e) Taz = 318.15 K → Pa z , x1a z = y1a z