{ "metadata": { "name": "", "signature": "sha256:39eab768daff11aebdd87a93356bef21d5d2b1bdfeb10c1efcd7ba6d3163e0fd" }, "nbformat": 3, "nbformat_minor": 0, "worksheets": [ { "cells": [ { "cell_type": "heading", "level": 1, "metadata": {}, "source": [ "Chapter 9 - Statistical Mechanics" ] }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 2 - pg 525" ] }, { "cell_type": "code", "collapsed": false, "input": [ "#calculate the Absolute Entropy\n", "#initialisation of variables\n", "import math\n", "T= 298.16 #K\n", "M= 4.003 #gm\n", "S= 2.3151 #cal mol^-1 deg^-1\n", "R= 1.987 #cal/molK\n", "#CALCULATIONS\n", "S1= 2.5*R*math.log(T)+1.5*R*math.log(M)-S\n", "#RESULTS\n", "print '%s %.3f %s' % (' Absolute Entropy=',S1,'cal mol^-1 deg^-1')\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ " Absolute Entropy= 30.122 cal mol^-1 deg^-1\n" ] } ], "prompt_number": 1 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example 3 - pg 528" ] }, { "cell_type": "code", "collapsed": false, "input": [ "#calculate the heat required\n", "#initialisation of variables\n", "h= 6.624*10**-27#erg/sec\n", "N= 6.023*10**23\n", "c= 3*10**10 #m/sec\n", "w= 2359.6 #cm**-1\n", "T= 2000 #K\n", "K= 1.380*10**-16\n", "R= 1.987 #cal mol**-1 k**-1\n", "#CALCULATIONS\n", "x= h*c*w/(K*T)\n", "y= 2.71**x\n", "H= 3.5*R+(N*h*c*w/(T*4.184*10**7*(y-1)))\n", "#RESULTS\n", "print '%s %.3f %s' % (' Heat=',H,'cal mol**-1 deg**-1')\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ " Heat= 7.715 cal mol**-1 deg**-1\n" ] } ], "prompt_number": 2 } ], "metadata": {} } ] }