24 citations · 65 across the 17 of their papers we have counts for
12 papers · 2 filters
Entropy production by simple electrical circuits
E. N. Miranda, S. Nikolskaia
The entropy production by simple electrical circuits (R, RC, RL) is analyzed. It comes out that the entropy production is minimal, in agreement with a well known theorem due to Pri…
What fuel for a rocket?
E. N. Miranda
Elementary concepts from general physics and thermodynamics have been used to analyze rocket propulsion. Making some reasonable assumptions, an expression for the exit velocity of…
Levitation in an "almost" electrostatic field
E. N. Miranda
It is well known that a charged particle cannot be in stable equilibrium in a purely electrostatic field. The situation is different in a magnetostatic field; consequently, magneti…
Microscopic description of a nonequilibrium system
E. N. Miranda
The empirical laws of chemical kinetics are studied from a microscopic point of view. An analysis based on elementary probability theory and combinatorics is enough to explain the…
What lies between a free adiabatic expansion and a quasi-static one?
E. N. Miranda
An expression is found that relates the initial and final volumes and temperatures for any adiabatic process. It is given in terms of a parameter r that smoothly interpolates betwe…
Adiabatic reversible compression: a molecular view
E. N. Miranda
The adiabatic compression (or expansion) of an ideal gas has been analysed. Using the kinetic theory of gases the usual relation between temperature and volume is obtained, while t…