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diff --git a/Heat_And_Thermodynamics_by_A_Manna/6-Change_of_state.ipynb b/Heat_And_Thermodynamics_by_A_Manna/6-Change_of_state.ipynb new file mode 100644 index 0000000..3a99ebc --- /dev/null +++ b/Heat_And_Thermodynamics_by_A_Manna/6-Change_of_state.ipynb @@ -0,0 +1,200 @@ +{ +"cells": [ + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "# Chapter 6: Change of state" + ] + }, +{ + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Example 6.1: The_change_in_melting_point.sce" + ] + }, + { +"cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], +"source": [ +"clc\n", +"clear\n", +"\n", +"//INPUT\n", +"vl=1;//volume of water in cc\n", +"vs=1.0908;//volume of ice in cc\n", +"t=273;//temperature in k\n", +"p=76*13.6*981;//pressure in dynes/sq.cm\n", +"l=80;//latent heat of fusion in cal\n", +"j=4.2*10^7;//joules constant in erg/cal\n", +"\n", +"//CALCULATIONS\n", +"v=vl-vs;//change in volume\n", +"T=(v*t*p)/(j*l);//change in melting point of water\n", +"\n", +"//OUTPUT\n", +"mprintf('the change in melting point of water is %3.11f',T)" + ] + } +, +{ + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Example 6.2: The_latent_heat_of_vapourisation.sce" + ] + }, + { +"cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], +"source": [ +"clc\n", +"clear\n", +"\n", +"//INPUT\n", +"vv=1674;//volume of vapour in cc\n", +"vl=1;//volume of liquid in cc\n", +"p=760;//pressure of steam and water in mm\n", +"t=373;//temperature in K\n", +"p1=27.12;//superincumbent pressure in mm\n", +"\n", +"//CALCULATIONS\n", +"v=vv-vl;//change in volume\n", +"l=(v*p1*t*0.024203/(p));//latent heat of vapourisation in cal\n", +"\n", +"//OUTPUT\n", +"mprintf('the latent heat of vapourisation is %3.1f cal',l)" + ] + } +, +{ + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Example 6.3: The_value_of_K.sce" + ] + }, + { +"cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], +"source": [ +"clc\n", +"clear\n", +"\n", +"//INPUT\n", +"m=1/(342*100);//molar concentration of water\n", +"t=289;//temperature in K\n", +"p=53.5*13.6*981;//pressure in dynes/sq.cm\n", +"\n", +"//CALCULATIONS\n", +"k=p/(t*m);//the value of k in ergs/mol.deg\n", +"\n", +"//OUTPUT\n", +"mprintf('the value of k is %3.2f ergs/mol.deg',k)" + ] + } +, +{ + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Example 6.4: The_temperature_for_the_triple_point.sce" + ] + }, + { +"cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], +"source": [ +"clc\n", +"clear\n", +"\n", +"//INPUT\n", +"p1=4.60;//presure at 0deg.C in mm per deg.C\n", +"p2=4.94;//pressure at 1deg.C in mm per deg.C\n", +"t=0.0072;//lowering the melting point in deg.C\n", +"t1=7.1563979*10^(-3);//rise in melting point in deg.C\n", +"p=760;//atmospheric pressure in mm hg\n", +"\n", +"//CALCULATIONS\n", +"dp=p2-p1;//rate of increase of pressure in mm per deg.C\n", +"p3=(t1*p)/t;//pressure in mm\n", +"dt=(755.4-p3)/dp;//tmperature for the triple point in deg.C\n", +"\n", +"//OUTPUT\n", +"mprintf('temperature for the triple point is %3.6f deg.C',dt)" + ] + } +, +{ + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Example 6.5: The_slopes_of_vapourisatio.sce" + ] + }, + { +"cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], +"source": [ +"clc\n", +"clear\n", +"\n", +"//INPUT\n", +"v=21*10^4;//change in volume from vapour to liquid in cc\n", +"Ls=687;//latent heat of sublimation in cal\n", +"lv=607;//latent heat of vapourisation in cal\n", +"t=273;//temperature of water in deg.C\n", +"j=4.2*10^7;//joules constant in ergs/cal\n", +"\n", +"//CALCULATIONS\n", +"sv=lv*j/(t*(v));//slope of vapourisation curve at 0 deg.C in dyne/sq.cm/deg.C\n", +"ss=Ls*j/(t*(v));//slope of sublimation curve at 0 deg.C in dyne/sq.cm/deg.C\n", +"\n", +"//OUTPUT\n", +"mprintf('the slope of vapourisation curve is %3.2f dyne/sq.cm/deg.C \n the slope of sublimation curve is %3.2f dyne/sq.cm/deg.C',sv,ss)" + ] + } +], +"metadata": { + "kernelspec": { + "display_name": "Scilab", + "language": "scilab", + "name": "scilab" + }, + "language_info": { + "file_extension": ".sce", + "help_links": [ + { + "text": "MetaKernel Magics", + "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md" + } + ], + "mimetype": "text/x-octave", + "name": "scilab", + "version": "0.7.1" + } + }, + "nbformat": 4, + "nbformat_minor": 0 +} |