Proof of the Nernst heat theorem

Abstract

The Nernst heat theorem is probed from purely thermodynamic arguments connected with the second law of thermodynamics, and alien to the vanishing of the specific heats, or to the unattainability of the zeroth isotherm. If the proof is accepted the second law of thermodynamics would extend its applicability and the third postulate of thermodynamics would be narrowed to the fact that the entropy of a finite-density, chemically homogeneous body must not be negative. -- -- Se demuestra el teorema de Nernst a partir de argumentos exclusivamente termodinámicos que se extraen del segundo principio, y que son ajenos a la anulación de los calores específicos o a la inaccesibilidad de la isoterma cero. Si se acepta la demostración, entonces el segundo principio extendería su rango de aplicabilidad y el tercer principio quedaría reducido al hecho de que la entropía de un cuerpo de densidad finita y quimicamente homogéneo no puede ser negativa.

ENG: 1600 words; 1 figure. ESP: 1800 palabras, 1 figura

References in corpus (1)

• Universal restrictions to the conversion of heat into work derived from the analysis of the Nernst theorem as a uniform limit

Cited by in corpus (2)

• Thermal stability originates the vanishing of the specific heats at the absolute zero
• Canonical quantization for Equilibrium Thermodynamics