{ "metadata": { "name": "" }, "nbformat": 3, "nbformat_minor": 0, "worksheets": [ { "cells": [ { "cell_type": "heading", "level": 1, "metadata": {}, "source": [ "Chapter 23 :\n", "\n", "Fluid-Fluid Reactions: Kinetics" ] }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 23.1 pageno : 536" ] }, { "cell_type": "code", "collapsed": false, "input": [ "import math \n", "\n", "# Variables\n", "k = 10.**6;\n", "Kag_a = 0.01 #mol/hr. m**3. Pa\n", "fl = 0.98;\n", "Kal = 1.;\n", "HA = 10.**5; # very low solubility\n", "DAl = 10.**-6;\n", "DBl = DAl;\n", "PA = 5*10.**3 #Pa\n", "CB = 100. #mol/m3\n", "b = 2. \n", "a = 20. #m2/m3\n", "\n", "# Calculations\n", "Mh = math.sqrt(DAl*k*CB*CB)/Kal;\n", "Ei = 1+(DBl*CB*HA/(b*DAl*PA));\n", "E = 100.\n", "print \" Part a\"\n", "\n", "res_total = (((1/(Kag_a))+(HA/(Kal*a*E))+(HA/(k*CB*CB*fl)))) #Total Resismath.tance\n", "f_gas = (1/(Kag_a))/res_total; #fraction of resismath.tance in gas film\n", "f_liq = (HA/(Kal*a*E))/res_total; #fraction of resismath.tance in liquid film\n", "\n", "\n", "# Results\n", "print \" Fraction of the resistance in the gas film is %f\"%(f_gas)\n", "print \" Fraction of the resistance in the liquid film is %f\"%(f_liq)\n", "print \" Part b\"\n", "print \" The reaction zone is in the liquid film\"\n", "print \" Part c\"\n", "if Ei>5*Mh:\n", " print \" We have pseudo 1st order reaction in the film\"\n", "\n", "rA = PA/(((1/(Kag_a))+(HA/(Kal*a*E))+(HA/(k*CB*CB*fl))));\n", "print \" Part d\"\n", "print \" The rate of reactionmol/m3.hr) is %f\"%(rA)\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ " Part a\n", " Fraction of the resistance in the gas film is 0.666667\n", " Fraction of the resistance in the liquid film is 0.333333\n", " Part b\n", " The reaction zone is in the liquid film\n", " Part c\n", " We have pseudo 1st order reaction in the film\n", " Part d\n", " The rate of reactionmol/m3.hr) is 33.333331\n" ] } ], "prompt_number": 1 }, { "cell_type": "code", "collapsed": false, "input": [], "language": "python", "metadata": {}, "outputs": [] } ], "metadata": {} } ] }