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| author | Jovina Dsouza | 2014-07-07 16:34:28 +0530 |
|---|---|---|
| committer | Jovina Dsouza | 2014-07-07 16:34:28 +0530 |
| commit | fffcc90da91b66ee607066d410b57f34024bd1de (patch) | |
| tree | 7b8011d61013305e0bf7794a275706abd1fdb0d3 /Concepts_Of_Modern_Physics/Chapter_8.ipynb | |
| parent | 299711403e92ffa94a643fbd960c6f879639302c (diff) | |
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adding book
Diffstat (limited to 'Concepts_Of_Modern_Physics/Chapter_8.ipynb')
| -rwxr-xr-x | Concepts_Of_Modern_Physics/Chapter_8.ipynb | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/Concepts_Of_Modern_Physics/Chapter_8.ipynb b/Concepts_Of_Modern_Physics/Chapter_8.ipynb new file mode 100755 index 00000000..55544617 --- /dev/null +++ b/Concepts_Of_Modern_Physics/Chapter_8.ipynb @@ -0,0 +1,163 @@ +{
+ "metadata": {
+ "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 8:Molecules"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Exampnle no:8.1,Page no:283"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Variable declaration \n",
+ "r= 0.113 #bond length, nm\n",
+ "Mc= 1.99*(10**(-26)) #mass of C12, kg\n",
+ "Mo= 2.66*(10**(-26)) #mass of O16, kg\n",
+ "\n",
+ "#Calculation\n",
+ "#Part (a)\n",
+ "import math\n",
+ "Mco= (Mc*Mo)/(Mc+Mo) #mass of CO, kg\n",
+ "I= Mco*((r*(10.0**(-9.0)))**2.0) #moment of inertia, kg.m**2\n",
+ "J=1.0 #lowest rotational state\n",
+ "h= 6.63*(10**(-34)) #Planck's constant, J.s\n",
+ "hbar= h/(2.0*(math.pi)) #reduced Planck's constant, J.s\n",
+ "E1= (J*(J+1)*(hbar**2))/(2.0*I) #energy corresponding to state J=1, J\n",
+ "e= 1.6*(10**(-19)) #charge of an electron, C\n",
+ "E1= E1/e #converting to eV\n",
+ "#Part(b)\n",
+ "w= math.sqrt((2.0*7.61*10**-23)/(1.46*10**-46)) #angular velocity, rad/s\n",
+ "\n",
+ "#Result\n",
+ "print\"(a).The energy of CO molecule is:%.2e\"%E1,\"eV(approx)\"\n",
+ "print\"(b).The angular velocity is:%.3g\"%w,\"rad/sec\\n\"\n",
+ "\n",
+ "print\"NOTE:(Calculation mistake):Incorrect answer in book for (b) part\"\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "(a).The energy of CO molecule is:4.79e-04 eV(approx)\n",
+ "(b).The angular velocity is:1.02e+12 rad/sec\n",
+ "\n",
+ "NOTE:(Calculation mistake):Incorrect answer in book for (b) part\n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Exampnle no:8.2,Page no:285"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Variable declaration\n",
+ "Ji=0 #initial state\n",
+ "Jf=1 #final state\n",
+ "f= 1.15*(10**11) #frequency for the absorption, Hz\n",
+ "h= 6.63*(10**(-34)) #Planck's constant, J.s\n",
+ "\n",
+ "#Calculation\n",
+ "hbar= h/(2*(math.pi)) #reduced Planck's constant, J.s\n",
+ "Ico= hbar*Jf/(2*(math.pi)*f) #moment of inertia, kg.m**2\n",
+ "Mco= 1.14*(10**(-26)) #Mass of CO, refer Exa 8.1\n",
+ "r= math.sqrt(Ico/Mco) #bond length, m\n",
+ "r= r*(10**9) #converting to nm\n",
+ "\n",
+ "#Result\n",
+ "print\"The bond length of CO molecule is: \",round(r,3),\"nm\"\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "The bond length of CO molecule is: 0.113 nm\n"
+ ]
+ }
+ ],
+ "prompt_number": 3
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Exampnle no:8.3,Page no:288"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Variable declaration\n",
+ "f= 6.42*(10**13) #frequency of absorbed radiation, Hz\n",
+ "Mco= 1.14*(10**(-26)) #mass of CO, kg\n",
+ "h= 6.63*(10**(-34)) #Planck's constant, J.s\n",
+ "\n",
+ "#Calculation\n",
+ "#Part (a)\n",
+ "k= 4*((math.pi)**2)*(f**2)*Mco #using Eqn 8.15, Page 287\n",
+ "#Part (b)\n",
+ "dE= h*f #separation, J\n",
+ "etoJ=dE*6.24*10**18 \n",
+ "\n",
+ "#Result\n",
+ "print\"(a).The force constant for the bond in CO molecule is: %.3g\"%k,\"N/m\"\n",
+ "print\"\\nNOTE:Slight error in calculation of book,'k' is written as 1.86*10**3\\n\\n\"\n",
+ "print\"(b).The separation in its vibrational eergy levels is:%.3g\"%dE,\"J=\",round(etoJ,3),\"eV\"\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "(a).The force constant for the bond in CO molecule is: 1.85e+03 N/m\n",
+ "\n",
+ "NOTE:Slight error in calculation of book,'k' is written as 1.86*10**3\n",
+ "\n",
+ "\n",
+ "(b).The separation in its vibrational eergy levels is:4.26e-20 J= 0.266 eV\n"
+ ]
+ }
+ ],
+ "prompt_number": 4
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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