Vol. 12 Issue 4 Oct.-Dec. 2021

Robert H.B. Exell


Abstract: A simple qualitative presentation of the laws of thermodynamics is given for non-specialists without using mathematics. Descriptions of the properties of a thermodynamic system are given in terms of the random motion of the particles in the system. It is shown how the Principle of Conservation of Energy and the First Law lead to the concept of internal energy and the State Principle. The Second Law is divided into two parts. The first part is concerned with entropy and thermodynamic temperature. Entropy is an indicator for the possibility of adiabatic changes between equilibrium states. Thermodynamic temperature is an indicator for the internal energy of equilibrium states. The second part of the Second Law is the Principle of Increase of Entropy, which states that when coupled systems move spontaneously from disequilibrium to equilibrium with each other, the total entropy of the systems increases. The Third Law states that no finite process can cool a system to the absolute zero of temperature.

Keywords: Thermodynamics, non-technical presentation, First Law, internal energy, State Principle, adiabatic reversibility, Second Law, entropy, thermodynamic temperature, Principle of Increase of Entropy, Third Law, absolute zero.


Shabbir H. Gheewala


Abstract: Publishing research results in peer-reviewed journals is an important part of the academic process. There is both science and art involved in the entire publication process, starting from writing the manuscript, through the review process, revision, and ultimately the final acceptance. Based on the experience of the author of this article as an author, reviewer, and journal editor, information is provided on all these aspects in involved in publishing a journal paper. Special tips are provided on writing manuscripts, selecting journals, and handling the review process.