Electrothermodynamics, Electrothermal Dynamics, and Thermoelectric Dynamics:

We provide a complete theoretical treatment of three often conflated but fundamentally distinct categories: • Electrothermodynamics• Electrothermal Dynamics • Thermoelectric Dynamics All governing relations are derived explicitly from first principles in multi-step form to ensure dimensional consistency. We conclude by unifying the three within a bimetric-torsional Codex framework, yielding a comprehensive physics of electrical, thermal, and entropy couplings.