// Scilab Code Ex14.1 Polarization of water molecule: Page-456 (2010) NA = 6.023e+23; // Avogadro's number p = 6e-030; // Dipole moment of water molecule, C-m r = 1e-03; // Radius of water molecule, m M = 18e-03; // Molecular weight of water, kg d = 1e+03; // Density of water, kg per metre cube V = M/d; // Volume of water, metre cube // Now M/d metre cube volume will contain NA = 6.023e+023 water molecules, so that 4*%pi/3*(r^3) metre cube volume will contain N = NA*d*4*%pi*r^3/(M*3); // Number of water molecules per metre cube P = N*p; // Polarization of water molecules, coulomb per metre square printf("\nThe polarization of water molecules = %3.1e coulomb per metre square", P); // Result // The polarization of water molecules = 8.4e-010 coulomb per metre square