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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Chapter 3 : The first law of thermodynamics"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 3.1 Page No : 34"
]
},
{
"cell_type": "code",
"execution_count": 1,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Work of expansion = 2.87e+06 ergs\n",
" 1 cal = 4.17e+07 ergs\n"
]
}
],
"source": [
"\n",
"# Variables\n",
"p = 1.013*10**6 \t\t\t#dynecm**2\n",
"T = 273.16 \t\t\t#K\n",
"V = 773.4 \t\t\t#cc\n",
"n = 0.0687 \t\t\t#cal\n",
"#CALCCULATIONS\n",
"W = p*V/T\n",
"k = W/n\n",
"\n",
"# Results\n",
"print 'Work of expansion = %.2e ergs'%(W)\n",
"print ' 1 cal = %.2e ergs'%(k)\n"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 3.2 Page No : 44"
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Work of expansion = -3.99e+10 ergs mole**-1 \n"
]
}
],
"source": [
"\n",
"# Variables\n",
"import math \n",
"R = 8.314*10**7 \t\t\t#J/mol K\n",
"T = 298.2 \t \t\t#K\n",
"p1 = 1. \t\t\t#atm\n",
"p2 = 5.\t \t\t #atm\n",
"\n",
"# Calculations\n",
"W = R*T*math.log(p1/p2)\n",
"\n",
"# Results\n",
"print 'Work of expansion = %.2e ergs mole**-1 '%(W)\n"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 2",
"language": "python",
"name": "python2"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 2
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython2",
"version": "2.7.6"
}
},
"nbformat": 4,
"nbformat_minor": 0
}
|
