Oneeq4

Name: Oneeq4 - Azeotropic point calculation
Source: Shacham, M. and Kehat, E., 1972, Chem. Engng. Sci, 27, 2099
Reference/s Shacham, M. 1989, Chem. Engng. Sci., 44(7), 1495
       
Model: 1 implicit equation, indep. variable name: x
  Lower difficulty level
  Constraints: 0<=x<=1
  Discontinuities: none in the feasible region
  Initial range: xmin=0, xmax=1
       
Solved by Shacham, M., POLYMATH 5.1, build 19,Nov. 17, 2000
       
Model Eqs. Azeotropic point calculation |POLVER05_1

EXCEL FILE 

f(x) = A*B*(B*(1-x)^2-A*x^2)/(x*(A-B)+B)^2+0.14845 #

TEXT FILE 

A = 0.38969 #

POLYMATH FILE 

B = 0.55954 #
  x(min)=0, x(max)=1
       
Variable/function values Variable Value f(x)
  x 0.5

1.8955E-01
       
Root Variable Value f(x)
  x

0.691473747542323

-6.3838E-16
       
Function plot