The dielectric constant, ε, is inversely related to the square of the vibrational frequency (ω) of a material. As temperature increases, thermal expansion leads to an increase in lattice constant, resulting in stiffer chemical bonds and faster vibrational frequencies, which decreases the dielectric constant. Conversely, polar materials exhibit slower lattice vibrations that enhance screening efficiency, thereby increasing the dielectric constant. This relationship highlights the critical interplay between temperature, polarity, and dielectric properties.
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Emmanuel_Euler said:please explain the concept of dielectric constant in the simplest CHEMICAL terms possible.
why does it decrease when the temperature increases? and why does it increase when the polarity increases?
please keep it simple and brief.