Dew point of a nonideal binary mixture (isobutanol-water)   |POLVER05_1
f(t)=x1+x2-1  #
f(x1)=x1-y1/k1  #
f(x2)=x2-y2/k2  #
y2=0.8  #
y1=0.2  #
p1=10^(7.62231-1417.9/(191.15+t))  #
p2=10^(8.10765-1750.29/(235+t))  #
B=0.7  #
A=1.7  #
gamma2=10^(B*x1*x1/((x1+B*x2/A)^2))  #
gamma1=10^(A*x2*x2/((A*x1/B+x2)^2))  #
k2=gamma2*p2/760  #
k1=gamma1*p1/760  #
t(0)=100
x1(0)=0.2
x2(0)=0.8