A model devised by this scientist adds an additional factor for the number of modes to the Einstein model.
This physicist actually introduced the method of light scattering for determining the molecular weight of a polymer. This physicist extended the Einstein formulation of Brownian motion to the rotational motion of molecules with a permanent electric dipole to derive his namesake relaxation. This physicist names the scale over which mobile charge carriers can screen out excess charge. This physicist is the alphabetically prior namesake of a theory that explained the non-ideality of (*) ionic solutions and can be used to calculated the log of the activity coefficient. A model devised by this scientist adds an additional factor for the number of modes to the Einstein model. For 10 points, identify this scientist who names a theory of electrolytes with Hückel and whose model of heat capacity displays a temperature-cubed dependence at low temperatures.
This physicist actually introduced the method of light scattering for determining the molecular weight of a polymer.
Peter Debye