initial commit / add all books

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diff --git a/1004/CH7/EX7.1/Ch07Ex1.sci b/1004/CH7/EX7.1/Ch07Ex1.sci
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+// Scilab code: Ex7.1 : Frequency of oscillation of a hydrogen molecule: Pg: 170 (2008)

+K = 4.8e+02;    // Force constant, N/m

+m = 1.67e-027;    // Mass of hydrogen atom, kg

+mu = m/2;    // Reduced mass of the system, kg

+v = 1/(2*%pi)*sqrt(K/mu);    // Frequency of oscillation of a hydrogen molecule, Hz

+printf("\nThe frequency of oscillation of a hydrogen molecule = %3.1e Hz", v);

+// Result

+// The frequency of oscillation of a hydrogen molecule = 1.2e+014 Hz
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diff --git a/1004/CH7/EX7.2/Ch07Ex2.sci b/1004/CH7/EX7.2/Ch07Ex2.sci
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+// Scilab code: Ex7.2: bond Length of carbon monoxide: Pg: 170 (2008)

+h = 6.626e-034;    // Planck's constant, Js

+c = 2.997e+010;    // Speed of light, cm/s

+B = 1.921;    // Rotational constant for CO, per cm

+nu_bar = 2*B;    // Wavenumber of first line in rotation spectra of CO, per cm

+mu = 11.384e-027;    // Reduced mass of the CO system, per cm

+I = 2*h/(8*%pi^2*nu_bar*c);    // Moment of inertia of CO molecule about the axis of rotation, kg-m/s

+r = sqrt(I/mu);    // Bond length of CO molecule, m

+printf("\nThe bond length of CO molecule = %5.2f angstrom", r/1e-010);

+// Result

+// The bond length of CO molecule =  1.13 angstrom 
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diff --git a/1004/CH7/EX7.3/Ch07Ex3.sci b/1004/CH7/EX7.3/Ch07Ex3.sci
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+// Scilab code: Ex7.3: Intensity ratio of J states for HCL molecule: Pg: 171 (2008)

+e = 1.6e-019;    // Energy equivalent of 1 eV, J/eV

+K = 1.38e-23;    // Boltzmann constant, J/K

+T = 300;    // Absolute room temperature, K

+J1 = 0;    // Rotational quantum number for ground level

+J2 = 10;    // Rotational quantum number for 10th level

+EJ1 = J1*(J1+1)*1.3e-03;    // Energy of ground level of HCL molecule, eV

+EJ2 = J2*(J2+1)*1.3e-03;    // Energy of 10th level of HCL molecule, eV

+// As n10/n0 is propotional to (2J+1)*exp(-(EJ2-EJ1))/KT, so

+I_ratio = (2*J2+1)/(2*J1+1)*exp(-(EJ2 - EJ1)/(K*T/e));    // Intensity ratio of J10 and J1 states

+printf("\nThe intensity ratio of J-states for HCL molecule = %4.2f", I_ratio);

+// Result

+// The intensity ratio of J-states for HCL molecule = 0.08

diff --git a/1004/CH7/EX7.4/Ch07Ex4.sci b/1004/CH7/EX7.4/Ch07Ex4.sci
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+// Scilab code: Ex7.4: CO molecule in lower state: Pg: 171 (2008)

+R = 1.13e-010;    // Bond length of CO molecule, m

+h_red = 1.054e-034;    // Reduced Planck's constant, Js

+mu = 1.14e-026;    // Reduced mass ofthe system, kg

+J = 1;    // Rotational quantum number for lowest state

+I = mu*R^2;    // Moment of inertia of CO molecule about the axis of rotation, kg-metre square

+EJ = J*(J + 1)*h_red^2/(2*I);    // Energy of the CO molecule in the lowest state, J

+omega = sqrt(2*EJ/I);    // Angular velocity of the CO molecule in the lowest state, rad per sec

+printf("\nThe energy of the CO molecule in the lowest state = %4.2e J", EJ);

+printf("\nThe angular velocity of the CO molecule in the lowest state = %4.2e rad/sec", omega);

+// Result

+// The energy of the CO molecule in the lowest state = 7.63e-023 J

+// The angular velocity of the CO molecule in the lowest state = 1.02e+012 rad/sec 
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