1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
{
"metadata": {
"name": "",
"signature": "sha256:d8a3e9ee0b493342a03a360ee0ca604f80a61547dd5ed22ef022608eecfbe8c4"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 9 - Boltzmann distribution law"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 1 - pg 235"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#calculate the no of particles\n",
"#Initialization of variables\n",
"import math\n",
"r=2.1*10**-6 #cm\n",
"n=889\n",
"x=0.1 #cm\n",
"T=298.2 #K\n",
"#calculations\n",
"V=4/3 *math.pi *r**3\n",
"rho=19.3-1\n",
"ffd=rho*V*980.7\n",
"eps=ffd*x\n",
"logN=-6.96*10**-14 /(2.303*1.38*10**-16 *T)\n",
"N=10**logN *n\n",
"#results\n",
"print '%s %.1f' %(\"No. of particles =\",N)\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"No. of particles = 163.9\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 2 - pg 237"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#calculate the Temperature\n",
"#Initialization of variables\n",
"import math\n",
"x=1. #percent\n",
"wave=1595 #cm**-1\n",
"#calculations\n",
"E=2.8593*wave\n",
"Nratio=(100-x)/x\n",
"logN=math.log10(Nratio)\n",
"T=E/(2.303*1.987*logN)\n",
"#results\n",
"print '%s %d %s' %(\"Temperature =\",T,\"K\")\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Temperature = 499 K\n"
]
}
],
"prompt_number": 2
}
],
"metadata": {}
}
]
}
|
