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← ScienceWhich effect most directly reduces efficiency during high-frequency dielectric heating of a polar molecular liquid?
A)Molecular rotational relaxation losses✓
B)Electrode polarization impedance increase
C)Faradaic reaction at the electrode surface
D)Electrolyte electromigration accumulation
💡 Explanation
When subjected to alternating high-frequency fields, polar molecules attempt to align, but their inertia causes a lag, leading to energy dissipation as heat through molecular rotational relaxation losses. Therefore significant heating decreases efficiency, rather than polarization, reaction or electromigration, requiring different processes.
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