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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Chapter23 Kinetics PhotoChemistry Radiation"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 23.1, Page no.82"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Entropy of activation = -10.6 cal degˆ−1 moleˆ−1\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "#initialisation of variables\n",
+    "k=9.12*10** -4 # secˆ−1 \n",
+    "H=25100 # cal moleˆ−1 \n",
+    "S=-10.6 # cal degˆ−1 moleˆ−1 \n",
+    "#RESULTS \n",
+    "print 'Entropy of activation =',S,'cal degˆ−1 moleˆ−1'"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 23.2, Page no.82"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "quantum yield = 16.55\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "#initialisation of variables\n",
+    "h= 6.62*10** -27 # ergs / sec\n",
+    "c= 3*10**10 #cm/ sec\n",
+    "wl= 4358 #A\n",
+    "I= 14000 # ergs secˆ−1\n",
+    "p= 80.1 # percent\n",
+    "t= 1105 # sec\n",
+    "n= 0.075 # millimole \n",
+    "#CALCULATIONS \n",
+    "E= h*c/(wl*10**-8) \n",
+    "q= I*p*t/(100*E) \n",
+    "M= 6*10**23*n*10**-3 \n",
+    "P= M/q \n",
+    "#RESULTS \n",
+    "P=round(P,2)\n",
+    "print  'quantum yield =',P"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 23.4, Page no.83"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "fraction of solar energy stored = 0.000912\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "#initialisation of variables\n",
+    "a=43560 # f t ˆ−2 \n",
+    "t= 500 #min dayˆ−1\n",
+    "E= 1000 # cal minˆ−1 f t ˆ−2\n",
+    "m= 2 # tons acreˆ−1\n",
+    "E1= 4000 # cal gramˆ−1\n",
+    "M= 9.07*10**5 #gram tonˆ−1\n",
+    "#CALCULATIONS \n",
+    "Sh= a*t*E*365.26\n",
+    "Hs= m*M*E1\n",
+    "r= Hs/Sh\n",
+    "#RESULTS\n",
+    "r=round(r,6)\n",
+    "print 'fraction of solar energy stored =',r"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "  ## Example 23.5, Page no.83"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "number of quanta = 1e+14\n",
+      "number of quanta = 7.14 * 10**12 molecules\n",
+      "grams per day= 4.55 *10**-9 gms\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "#initialisation of variables\n",
+    "h=6.625*10**-27 # ergs /mole\n",
+    "f=2.65*10**-5 # secˆ−1\n",
+    "c=3*10**10 #cm/ sec\n",
+    "t=2\n",
+    "N=6*10**23 # molecules\n",
+    "M=382 #gms\n",
+    "E1=750 # ergs \n",
+    "#CALCULATIONS \n",
+    "E=h*c/f \n",
+    "n1=E1/E \n",
+    "m=n1/(t*7) \n",
+    "G=m*M/N \n",
+    "#RESULTS\n",
+    "m=m*10**-12\n",
+    "m=round(m,2)\n",
+    "G=G*10**9\n",
+    "G=round(G,2)\n",
+    "print 'number of quanta =',n1\n",
+    "print 'number of quanta =',m,'* 10**12 molecules'\n",
+    "print 'grams per day=',G,'*10**-9 gms'"
+   ]
+  }
+ ],
+ "metadata": {
+  "anaconda-cloud": {},
+  "kernelspec": {
+   "display_name": "Python [Root]",
+   "language": "python",
+   "name": "Python [Root]"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.11"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}