Magnetostatics, Faraday's Law, Quasi-Static Fields — John David Jackson
Physics — E&M · water-vapor-dipole-moment-debye
Problem
Water vapor is a polar gas whose dielectric constant exhibits an appreciable temperature dependence. The following table gives experimental data on this effect. Assuming that water vapor obeys the ideal gas law, calculate the molecular polarizability as a function of inverse temperature and plot it. From the slope of the curve, deduce a value for the permanent dipole moment of the H2O molecule (express the dipole moment in coulomb-meters).
[table — see PDF]