From 728bf707ac994b2cf05a32d8985d5ea27536cf34 Mon Sep 17 00:00:00 2001 From: hardythe1 Date: Wed, 13 Aug 2014 11:41:01 +0530 Subject: adding book --- Chemistry/Chapter_6.ipynb | 422 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 422 insertions(+) create mode 100755 Chemistry/Chapter_6.ipynb (limited to 'Chemistry/Chapter_6.ipynb') diff --git a/Chemistry/Chapter_6.ipynb b/Chemistry/Chapter_6.ipynb new file mode 100755 index 00000000..c09bdeb7 --- /dev/null +++ b/Chemistry/Chapter_6.ipynb @@ -0,0 +1,422 @@ +{ + "metadata": { + "name": "" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter 6:Thermochemistry" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example no:6.1,Page no:237" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Variable declaration\n", + "P1=0 #external pressure, atm\n", + "Vf1=6 #final volume, L\n", + "Vi1=2 #initial volume, L\n", + "P2=1.2 #external pressure, atm\n", + "Vf2=6 #final volume, L\n", + "Vi2=2 #initial volume, L\n", + "\n", + "\n", + "#Calculation\n", + "#(a)\n", + "W1=-P1*(Vf1-Vi1) #work in atm.L\n", + "#(b)\n", + "W2=-P2*(Vf2-Vi2) #work in atm.L\n", + "W2=W2*101.3 #work in J\n", + "\n", + "#Result\n", + "print\"(a).The work done in expansion against vacuum is :\",W1,\"J\\n\"\n", + "print\"(b).The work done in expansion against 1.2 atm pressure is :%.1e\"%W2,\"J\\n\"\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "(a).The work done in expansion against vacuum is : 0 J\n", + "\n", + "(b).The work done in expansion against 1.2 atm pressure is :-4.9e+02 J\n", + "\n" + ] + } + ], + "prompt_number": 44 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example no:6.2,Page no:238" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Variable declaration\n", + "q=-128 #heat transfer from the gas, J\n", + "w=462 #work done in compressing the gas, J\n", + "\n", + "#Calculation\n", + "deltaE=q+w #change in energy of the gas, J\n", + "\n", + "#Result\n", + "print\"The change in energy for the process is :\",deltaE,\"J\\n\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The change in energy for the process is : 334 J\n", + "\n" + ] + } + ], + "prompt_number": 45 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example no:6.3,Page no:243" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Variable declaration\n", + "mSO2=87.9 #mass in g\n", + "SO2=64.07 #molar mass in g\n", + "\n", + "#Calculation\n", + "nSO2=mSO2/SO2 #moles of SO2\n", + "deltaH=-198.2 #heat produced for 2 mol, in kJ/mol\n", + "deltaH=deltaH/2 #for one mole SO2,in kJ/mol\n", + "Hprod=deltaH*nSO2 #heat produced in this case, in kJ/mol\n", + "\n", + "#Result\n", + "print\"The heat produced in a reaction is :\",round(Hprod),\"kJ\\n\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The heat produced in a reaction is : -136.0 kJ\n", + "\n" + ] + } + ], + "prompt_number": 46 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example no:6.4,Page no:245" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Variable declaration\n", + "R=8.314 #gas constant, J/K. mol\n", + "T=298 #temp in K\n", + "deltaH=-566 #enthalpy change, kJ/mol\n", + "deltan=2-3 #change in gas moles\n", + "\n", + "#Calculation\n", + "deltaE=deltaH-R*T*deltan/1000.0 #change in internal energy, kJ/mol\n", + "\n", + "#Result\n", + "print\"The change in internal energy in the reaction is :\",round(deltaE,1),\"kJ/mol\\n\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The change in internal energy in the reaction is : -563.5 kJ/mol\n", + "\n" + ] + } + ], + "prompt_number": 47 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example no:6.5,Page no:246" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Variable declaration\n", + "m=466 #mass in g\n", + "s=4.184 #specific heat in J/g C\n", + "\n", + "#Calculation\n", + "deltaT=74.6-8.5 #change in temp, C/K\n", + "q=m*s*deltaT/1000 #amount of heat absorbed, kJ\n", + "\n", + "#Result\n", + "print\"\\t the amount of heat absorbed is :\",round(q),\"kJ\\n\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "\t the amount of heat absorbed is : 129.0 kJ\n", + "\n" + ] + } + ], + "prompt_number": 48 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example no:6.6,Page no:248" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Variable declaration\n", + "Ccal=10.17 #heat capacity, kJ/C\n", + "deltaT=25.95-20.28 #change in temp, C\n", + "m=1.435 #mass of naphthalene, g\n", + "molm=128.2 #mol mass of naphthalene, g\n", + "\n", + "#Calculation\n", + "qcal=Ccal*deltaT \n", + "q=-qcal*molm/m #molar heat of combustion of naphthalene, kJ\n", + "\n", + "#Result\n", + "print\"The molar heat of combustion of naphthalene is :%.3g\"%q,\"kJ/mol\\n\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The molar heat of combustion of naphthalene is :-5.15e+03 kJ/mol\n", + "\n" + ] + } + ], + "prompt_number": 49 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example no:6.7,Page no:249" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Variable declaration\n", + "#for water\n", + "m=100 #mass, g\n", + "s=4.184 #specific heat, J/g C\n", + "deltaT=23.17-22.5 #change in temp., C\n", + "qH2O=m*s*deltaT #heat gained by water, J\n", + "\n", + "#for lead\n", + "qPb=-qH2O #heat lost by lead, J\n", + "m=26.47 #mass, g\n", + "\n", + "#Calculation\n", + "deltaT=23.17-89.98 #change in temp., C\n", + "s=qPb/(m*deltaT) #specific heat, J/g C\n", + "\n", + "#Result\n", + "print\"The specific heat of lead is :\",round(s,3),\"J/g C\\n\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The specific heat of lead is : 0.159 J/g C\n", + "\n" + ] + } + ], + "prompt_number": 50 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example no:6.8,Page no:249" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Variable declaration\n", + "#for water\n", + "m=100+100 #mass, g\n", + "s=4.184 #specific heat, J/g C\n", + "deltaT=25.86-22.5 #change in temp., C\n", + "\n", + "#Calculation\n", + "qsoln=m*s*deltaT/1000 #heat gained by water, kJ\n", + "qrxn=-qsoln \n", + "Hneut=qrxn/(0.5*0.1) \n", + "\n", + "#Result\n", + "print\"The heat of neutralization is :\",round(Hneut,1),\"kJ/mol\\n\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The heat of neutralization is : -56.2 kJ/mol\n", + "\n" + ] + } + ], + "prompt_number": 52 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example no:6.9,Page no:256" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Variable declaration\n", + "deltaH1=-393.5 #kJ/mol\n", + "deltaH2=-285.8 #kJ/mol\n", + "deltaH3=-2598.8 #kJ/mol\n", + "\n", + "#Calculation\n", + "deltaH4=2*(deltaH1)\n", + "deltaH5=(-1.0/2.0)*deltaH3\n", + "std_H=deltaH4+deltaH2+deltaH5\n", + "#Result\n", + "print\"Standard enthalpy of formation of acetylene is:\",std_H,\"kJ/mol\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "1299.4\n", + "Standard enthalpy of formation of acetylene is: 226.6 kJ/mol\n" + ] + } + ], + "prompt_number": 5 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example no:6.10,Page no:258" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Variable declaration\n", + "deltaH_Fel=12.4 #Heat of frmtn of Fe(l) in kJ/mol\n", + "deltaH_Al2O3=-1669.8 #Heat of formation of Al2O3 in kJ/mol\n", + "deltaH_Al=0 #Heat of formation of Al\n", + "deltaH_Fe2O3=-822.2 #Heat of formtion of Fe2O3 kJ/mol\n", + "M_Al=26.98 #Molar mass of Al\n", + "\n", + "#Calculation\n", + "deltaH_rxn=(deltaH_Al2O3+2*deltaH_Fel)-(2*deltaH_Al+deltaH_Fe2O3)\n", + "ratio=deltaH_rxn/2.0\n", + "heat_released=ratio/M_Al\n", + "\n", + "#Result\n", + "print\"Heat released per gram of Al is\",round(heat_released,2),\"kJ/g\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Heat released per gram of Al is -15.25 kJ/g\n" + ] + } + ], + "prompt_number": 7 + } + ], + "metadata": {} + } + ] +} \ No newline at end of file -- cgit