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+{
+ "metadata": {
+ "name": "",
+ "signature": "sha256:be81f2921bd837b769765ce2f11df805d4272c8fa82950148df6411036b4a56d"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter5 -The ideal gas"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example1-pg 85"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#calculate specific volumes at given pressure\n",
+ "##initialisation of variables\n",
+ "R= 8.314 ##J/mol K\n",
+ "M= 18.016 ##gms\n",
+ "T= 400. ##C\n",
+ "p= 0.01 ##Mpa\n",
+ "p1= 0.1 ##Mpa\n",
+ "p2= 20. ##Mpa\n",
+ "##CALCULATIONS\n",
+ "v= R*(273.156+T)/(M*p*1000)\n",
+ "v1= R*(273.156+T)/(M*p1*1000)\n",
+ "v2= R*(273.156+T)/(M*p2*1000)\n",
+ "##RESULTS\n",
+ "print'%s %.3f %s'%(' specific voulme =',v,'m^3/kg')\n",
+ "print'%s %.3f %s'%('specific voulme = ', v1,'m^3/kg')\n",
+ "print'%s %.3f %s'%('specific voulme = ',v2,'m^3/kg')\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " specific voulme = 31.065 m^3/kg\n",
+ "specific voulme = 3.106 m^3/kg\n",
+ "specific voulme = 0.016 m^3/kg\n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex3-pg87"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "##initialisation of variables\n",
+ "R=8.314\n",
+ "V= 20 ##L\n",
+ "m= 0.050 ##gms\n",
+ "M= 29 ##gms\n",
+ "T1= 20 ##C\n",
+ "T2= 150 ##C\n",
+ "k= 1.4\n",
+ "V1= 0.05 ##m**3\n",
+ "##CALCULATIONS\n",
+ "p1= m*R*(273.15+T1)/(M*(V/10))\n",
+ "p2= m*R*(273.15+T2)/(M*(V/10))\n",
+ "dU= p1*V1*(((273.15+T2)/(273.15+T1))-1)*100/(k-1)\n",
+ "dH= k*dU\n",
+ "##RESULTS\n",
+ "print'%s %.2f %s'% (' intial pressure =',p1,' kPa')\n",
+ "print'%s %.2f %s'% (' final pressure = ',p2,' kPa')\n",
+ "print'%s %.2f %s'% (' internal energy = ',dU,' kJ')\n",
+ "print'%s %.2f %s'% (' enthalpy = ',dH,' kJ')\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " intial pressure = 2.10 kPa\n",
+ " final pressure = 3.03 kPa\n",
+ " internal energy = 11.65 kJ\n",
+ " enthalpy = 16.31 kJ\n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex4-pg91"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "##initialisation of variables\n",
+ "T1= 200 ##K\n",
+ "p= 600 ##kPa\n",
+ "p1= 50 ##kPa\n",
+ "n= 1.8\n",
+ "M= 4. ##gms\n",
+ "k= 5/3.\n",
+ "m= 0.007 ##gms\n",
+ "R= 8.314 ##J/mol K\n",
+ "##CALCULATIONS\n",
+ "T2= T1*(p/p1)**((n-1)/n)\n",
+ "W= m*R*(T1-T2)/((n-1)*M)\n",
+ "Q= ((n-k)*m*R*(T2-T1))/((n-1)*(k-1)*M)\n",
+ "##RESULTS\n",
+ "print'%s %.2f %s'% (' final temperature = ',T2,' K')\n",
+ "print'%s %.2f %s'% (' work = ',W,' kJ')\n",
+ "print'%s %.2f %s'% (' energy = ',Q,' kJ')"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " final temperature = 603.48 K\n",
+ " work = -7.34 kJ\n",
+ " energy = 1.47 kJ\n"
+ ]
+ }
+ ],
+ "prompt_number": 4
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "example 5-pg92 "
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#calculate final temperature and pressure and work ,energy\n",
+ "##initialisation of variables\n",
+ "p1= 300.##kPa\n",
+ "V1= 0.03 ##m^3\n",
+ "V2= 0.08 ##m^3\n",
+ "T1= 27. ##C\n",
+ "##CALCULATIONS1\n",
+ "T2= T1+273\n",
+ "p2= p1*(V1/V2)*(T2/(T1+273))\n",
+ "W= 0\n",
+ "Q= 0\n",
+ "##RESULTS\n",
+ "print'%s %.2f %s'%('final temperature =',T2,'K')\n",
+ "print'%s %.1f %s'%('final pressure =',p2,'kPa')\n",
+ "print'%s %.f %s'%('work = ',W,'kJ')\n",
+ "print'%s %.f %s'%('energy =',Q,'kJ')\n",
+ " \n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "final temperature = 300.00 K\n",
+ "final pressure = 112.5 kPa\n",
+ "work = 0 kJ\n",
+ "energy = 0 kJ\n"
+ ]
+ }
+ ],
+ "prompt_number": 9
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example6 -pg93\n",
+ "\n"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#calculate mass of nitrogen and final temperature and piston rise\n",
+ "##initialisation of variables\n",
+ "p1= 2. ##Mpa\n",
+ "V1= 0.2 ##m^3\n",
+ "R= 8.314 ##J/mol K\n",
+ "T1= 500. ##C\n",
+ "M= 28. ##gms\n",
+ "p2= 0.3 ##Mpa\n",
+ "T2= 250 ##C\n",
+ "k= 1.4\n",
+ "A= 0.1 ##m^2\n",
+ "##CALCULATIONS\n",
+ "m1= p1*10*10*10*V1*M/(R*(273.15+T1))\n",
+ "m2= p2*10*10*10*V1*M/(R*(273.15+T2))\n",
+ "m3= -(m2-m1)\n",
+ "T3= (m1*(273.15+T1)-m2*(273.15+T2))/(k*m3)\n",
+ "z3= m3*R*T3/(p2*10*10*10*A*M)\n",
+ "##RESULTS\n",
+ "print'%s %.4f %s'%(' mass of nitrogen =',m3,'kg')\n",
+ "print'%s %.1f %s'%('final temperature =',T3,'K')\n",
+ "print'%s %.2f %s'%('piston rise =',z3,'m')\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " mass of nitrogen = 1.3561 kg\n",
+ "final temperature = 603.1 K\n",
+ "piston rise = 8.10 m\n"
+ ]
+ }
+ ],
+ "prompt_number": 11
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex7-pg94"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "##initialisation of variables\n",
+ "m= 0.3 ##kg\n",
+ "R= 8.314 ##J/mol K\n",
+ "M= 28 ##gms\n",
+ "T1= 500. ##C\n",
+ "p1= 500. ##kPa\n",
+ "k= 1.4\n",
+ "V3= 0.3 ##m**2\n",
+ "##CALCULATIONS\n",
+ "V1= m*R*(273.15+T1)/(M*p1)\n",
+ "T3= k*(273.15+T1)\n",
+ "p3= m*R*T3*100/(M*V)\n",
+ "##RESULTS\n",
+ "print'%s %.2f %s'% (' final pressure =',p3,' kPa')\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " final pressure = 482.10 kPa\n"
+ ]
+ }
+ ],
+ "prompt_number": 6
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+} \ No newline at end of file
generated by cgit (git 2.34.1) at 2024-12-21 14:07:12 +0000