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+{
+ "metadata": {
+  "name": "CH17"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 17: Corrosion and Degradiation of Materials"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 3,
+     "metadata": {},
+     "source": [
+      "Example 17.1 Page No 629"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Determination of Electrochemical Cell Characteristics\n",
+      "\n",
+      "#Given\n",
+      "V_Cd=-0.403  #Half Cell Potential of Cd++|Cd\n",
+      "V_Ni=-0.250  #Half Cell Potential of Ni++|Ni\n",
+      "\n",
+      "#calculation\n",
+      "dV=V_Ni-V_Cd\n",
+      "C_Ni=10**-3\n",
+      "C_Cd=0.5\n",
+      "n=2          #Net electron exchange in Redox reaction\n",
+      "V=-dV-(0.0592*math.log10(C_Ni/C_Cd)/n)\n",
+      "\n",
+      "#Result\n",
+      "print\"Standard Cell potential is \",dV,\"V\"\n",
+      "print\"Net EMF is \",round(V,3),\"V\"\n",
+      "if V<0:\n",
+      "    print\"Ni is reduced & Cd is oxidised\"\n",
+      "else:\n",
+      "    print\"Cd is reduced & Ni is oxidised\"\n",
+      "\n",
+      "\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Standard Cell potential is  0.153 V\n",
+        "Net EMF is  -0.073 V\n",
+        "Ni is reduced & Cd is oxidised\n"
+       ]
+      }
+     ],
+     "prompt_number": 8
+    },
+    {
+     "cell_type": "heading",
+     "level": 3,
+     "metadata": {},
+     "source": [
+      "Example 17.2 Page No 637"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Rate of Oxidation Computation\n",
+      "\n",
+      "#Given\n",
+      "#Activation polarisation data for Zn\n",
+      "VZn_Zn2=-0.763\n",
+      "iZn=10**-7\n",
+      "beta_Zn=0.09\n",
+      "#For H2\n",
+      "iH2=10**-10\n",
+      "VH_H2=0\n",
+      "beta_H2=-0.08\n",
+      "\n",
+      "#calculation\n",
+      "#Part i\n",
+      "ic=10**((VH_H2-VZn_Zn2-(beta_H2*math.log10(iH2))+(beta_Zn*math.log10(iZn)))/(beta_Zn-beta_H2))\n",
+      "n=2              #Exchange of 2 electrons\n",
+      "F=96500          #Faradays constant\n",
+      "r=ic/(n*F)\n",
+      "#Part ii\n",
+      "Vc=VH_H2+(beta_H2*log10(ic/iH2))\n",
+      "\n",
+      "#Result\n",
+      "print\"i) Rate of oxiadation is\",round(r,12),\"mol/cm**2-s\"\n",
+      "print\"ii) Corrosion potential is\",round(Vc,3),\"V\"\n",
+      "\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "i) Rate of oxiadation is 6.18e-10 mol/cm**2-s\n",
+        "ii) Corrosion potential is -0.486 V\n"
+       ]
+      }
+     ],
+     "prompt_number": 12
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [],
+     "language": "python",
+     "metadata": {},
+     "outputs": []
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file