Ingo Müller

Extended Thermodynamics of Classical and Degenerate Ideal Gases

Extended thermodynamics is a field theory with the primary objective of determining the thirteen fields of mass, momentum and energy densities, stress deviator and heat flux. This distinguishes it from ordinary thermodynamics which knows only five basic fields, viz. the densities of mass, momentum and energy.

Phase equilibrium in electro-magnetic fields

Abstract In a recent paper Liu and Muller[1] have derived equilibrium constitutive equations for simple heat conducting fluids in an electro-magnetic field. These results are applied here to find the conditions of phase equilibrium between a liquid and a vapor. An approximate method is proposed for the evaluation of the exact conditions and a numerical example shows the magnitude of the effect the fields have on the phase boundary conditions. A van der Waals fluid is used for the illustration of some ideas.

From Thermostatics to Thermodynamics; Discussion Paper

On 7th February, 1615 the Venetian diplomat Giovanfrancesco Sagredo wrote a letter to Galileo Galilei in which he reported what he had read off from his thermoscope: that ‘well water is actually colder in winter than in summer’ and he muses ‘that our senses judge differently’‡