{ "metadata": { "name": "", "signature": "sha256:1ec70a662dc9f6a30bf898e99451493ae9f0b58f74f820319f0e29c5d9fe95f2" }, "nbformat": 3, "nbformat_minor": 0, "worksheets": [ { "cells": [ { "cell_type": "heading", "level": 1, "metadata": {}, "source": [ "Chapter5-Liquefication and the properties of liquids\n" ] }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Ex1-pg138" ] }, { "cell_type": "code", "collapsed": false, "input": [ "import math\n", "##Intitalisation of variables\n", "\n", "m1= 1.947 ##gms\n", "V= 10. ##lit\n", "T= 22. ##C\n", "p= 752. ##mm of Hg\n", "T1= 28. ##C\n", "W= 46. ##gms\n", "R= 0.082 ##lit-atm mole^-1 K^-1\n", "##CALCULATIONS\n", "P= (m1*p/W)/((m1/W)+((p/760.)*V/(R*(273.+T))))\n", "P1= (m1*p/W)/(((p/760.)*V/(R*(273.+T))))\n", "P2= (m1/W)*R*(273.+T)*760./V\n", "##RESULTS\n", "print'%s %.2f %s'% ('Vapour pressure of ethanol = ',P,' mm')\n", "print'%s %.2f %s'% ('\\n Vapour pressure of ethanol = ',P1,' mm')\n", "print'%s %.2f %s'% ('\\n Vapour pressure of ethanol = ',P2,' mm')\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Vapour pressure of ethanol = 70.52 mm\n", "\n", " Vapour pressure of ethanol = 77.81 mm\n", "\n", " Vapour pressure of ethanol = 77.81 mm\n" ] } ], "prompt_number": 1 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Ex2-pg140" ] }, { "cell_type": "code", "collapsed": false, "input": [ "import math\n", "##Intitalisation of variables\n", "\n", "p= 27.17 ##mm\n", "T= 99.5 ##C\n", "T1= 100.5 ##C\n", "T2= 100. ##C\n", "sv1= 1674. ##cc per gram\n", "sv2= 1.04 ##cc per gram\n", "g= 980.7 ##cm/sec^2\n", "d= 13.595 ##kg/m^3\n", "##CALCULATIONS\n", "r= (p/10.)*d*g\n", "lv= (273.2+T2)*(sv1-sv2)*(p/10.)*d*g/(4.184*10**7)\n", "##RESULTS\n", "print'%s %.2f %s'% ('Heat of vapourisation of water = ',lv,' cal g^-1')\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Heat of vapourisation of water = 540.56 cal g^-1\n" ] } ], "prompt_number": 3 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Ex3-pg141" ] }, { "cell_type": "code", "collapsed": false, "input": [ "import math\n", "##Intitalisation of variables\n", "\n", "T= 100. ##C\n", "v1= 1674. ##cc\n", "v2= 1. ##cc\n", "lv= 539.9 ##cal g^-1\n", "sp= 13.595 ##kg/m63\n", "g= 980. ##cm/sec^2\n", "##CALCULATIONS\n", "r= (273.2+T)*(v1-v2)*sp*g/(lv*4.187*10**7)\n", "Tf= T+r\n", "##RESULTS\n", "print'%s %.2f %s'% ('Final temperature = ',Tf,' C')\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Final temperature = 100.37 C\n" ] } ], "prompt_number": 4 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Ex4-pg142" ] }, { "cell_type": "code", "collapsed": false, "input": [ "import math\n", "##Intitalisation of variables\n", "\n", "R= 2. ##cal mole^-1 K^-1 \n", "r= 2.72 ##cm of mercury per degree\n", "p= 76. ##cm of mercury\n", "T= 100. ##C\n", "m= 18. ##gms\n", "##CALCULATIONS\n", "Lv= R*(273.+T)**2*r/(m*p)\n", "##RESULTS\n", "print'%s %.2f %s'% ('heat of vapourisation = ',Lv,' cal g^-1')\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "heat of vapourisation = 553.26 cal g^-1\n" ] } ], "prompt_number": 5 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Ex5-pg144" ] }, { "cell_type": "code", "collapsed": false, "input": [ "import math\n", "##Intitalisation of variables\n", "\n", "vp= 526. ##mm\n", "T= 90. ##C\n", "T1= 100. ##C\n", "hv= 542. ##cal/gm\n", "m= 18. ##gm\n", "##CALCULATIONS\n", "p2= vp*10**(hv*m*(T1-T)/((273.+T)*4.576*(273.+T1)))\n", "##RESULTS\n", "print'%s %.2f %s'% ('Vapour pressure of water at 100 C = ',p2,' mm')\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Vapour pressure of water at 100 C = 755.87 mm\n" ] } ], "prompt_number": 6 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Ex6-pg146" ] }, { "cell_type": "code", "collapsed": false, "input": [ "import math\n", "##Intitalisation of variables\n", "\n", "p= 770. ##mm\n", "T= 100.37 ##C\n", "p1= 1 ##atm\n", "c= 0.0001\n", "T1= 100. ##C\n", "##CALCULATIONS\n", "dt= c*(273.+T1)*(760.-p)\n", "cbp= T+dt\n", "##RESULTS\n", "print'%s %.2f %s'% ('Change boiling point = ',dt,' C')\n", "print'%s %.2f %s'% ('\\n Corrected boiling point = ',cbp,' C')\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Change boiling point = -0.37 C\n", "\n", " Corrected boiling point = 100.00 C\n" ] } ], "prompt_number": 7 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Ex7-pg154" ] }, { "cell_type": "code", "collapsed": false, "input": [ "import math\n", "##Intitalisation of variables\n", "\n", "d= 0.7910 ##kg/cm^3\n", "T= 20. ##C\n", "mw= 58.08 ##gm\n", "x1= 7.2 ##gm\n", "x2= 16.2 ##gm\n", "x3= 20. ##gm\n", "x4= 23.2 ##gm\n", "n1= 3. ##atoms\n", "n2= 6. ##atoms\n", "##CALCULATIONS\n", "r= ((n1*x1+n2*x2+x3+x4)*d/mw)**4\n", "##RESULTS\n", "print'%s %.2f %s'% ('Surface tension of acetone = ',r,'dynes cm^-1')\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Surface tension of acetone = 23.70 dynes cm^-1\n" ] } ], "prompt_number": 8 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Ex8-pg158" ] }, { "cell_type": "code", "collapsed": false, "input": [ "import math\n", "##Intitalisation of variables\n", "r1= 1.3591\n", "d= 0.791 ##kg/m^3\n", "mw= 58.08 ##gms\n", "x1= 2.42 ##gm\n", "x2= 1.10 ##gm\n", "x3= 2.21 ##gm\n", "n1= 3. ##atoms\n", "n2= 6. ##atoms\n", "##CALCULATIONS\n", "MR= (r1**2-1.)*mw/(d*(r1**2+2.))\n", "cv= x1*n1+x2*n2+x3\n", "##RESULTS\n", "print'%s %.2f %s'% ('Molar refraction of this substance = ',MR,' cc')\n", "print'%s %.2f %s'% ('\\n Calculated value of Molar refraction of this substance = ',cv,' cc')\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Molar refraction of this substance = 16.17 cc\n", "\n", " Calculated value of Molar refraction of this substance = 16.07 cc\n" ] } ], "prompt_number": 9 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Ex9-pg160" ] }, { "cell_type": "code", "collapsed": false, "input": [ "import math\n", "##Intitalisation of variables\n", "\n", "dc= 2.033\n", "d= 0.7784 ##kg/m^3\n", "mw= 84.16 ##gm\n", "x1= 2.42 ##gm\n", "x2= 1.1 ##gm\n", "n1= 6.##atoms\n", "n2= 12. ##atoms\n", "##CALCULATIONS\n", "MP= (dc-1.)*mw/((dc+2.)*d)\n", "MPC= x1*n1+x2*n2\n", "##RESULTS\n", "print'%s %.2f %s'% ('Molar polarisation of this substance = ',MP,' cc')\n", "print'%s %.2f %s'% ('\\n Calculated Molar polarisation of this substance = ',MPC,' cc')\n" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Molar polarisation of this substance = 27.69 cc\n", "\n", " Calculated Molar polarisation of this substance = 27.72 cc\n" ] } ], "prompt_number": 10 } ], "metadata": {} } ] }