Oneeq17

Name: Oneeq17 - Global reaction rate in Catalytic Oxidation of Nitrogen
Source: Smith, J. M., Chemical Engineering Kinetics, McGraw-Hill, 1981,p. 443
  Vasudevan,P. T., Personal Communications
Reference/s Shacham, M. and Brauner, N., Computers chem. Engng. Submitted
       
Model: 1 implicit equation, indep. variable name: rp
  Higher difficulty level
  Constraints:rp>0
  Discontinuities: function undefined for rp>0.00037 and for rp=-0.0002027
  Initial range: rpmin=0, rpmax=0.00035
 

 

Solved by Shacham, M., POLYMATH 5.1, build 19, March 12, 2001
       
Model Eqs. Global reaction rate in Catalytic Oxidation of Nitrogen |POLVER05_1

EXCEL FILE  

f(rp) = rp-0.327*(0.06-161*rp)^0.804*exp(-5230/(1.987*(373+1.84e6*rp))) #

TEXT FILE 

rp(min)=0, rp(max)=.00035

POLYMATH FILE 

     
Variable/function values Variable Value f(x)
  rp 0.000175 -2.8846E-04
       
  Variable Value f(x)
Root rp 0.000340568862275 8.8931E-11
       
Additional Information f'(rp)=0 at rp=0.0002338 and rp=1.974e-4. This problem is unsolvable
  unless a bracketting type method (such as bisection) is used inside
  the fesibble region
       
Function plot