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All Journal Momentum: Physics Education Journal
Pulinchery, Prasanth
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Physics

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Teaching first order phase transition using a zipper model Perayil, Reshma; Murkoth, Udayanandan Kandoth; Pulinchery, Prasanth
Momentum: Physics Education Journal Vol. 6 No. 1 (2022)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/mpej.v6i1.5850

Abstract

In 1968, Kittel published the zipper model for demonstrating the first order phase transition which is applicable to DNA like structures. This paper utilize this model to explain the behavior of many thermodynamic properties before, at and after phase transition to get a clear picture about what the changes are happening to the system during phase transition. Many textbooks say that entropy and volume show discontinuity at phase transition whereas Gibbs free energy is continuous. The zipper model shows that energy is also discontinuous as shown in the paper. Understanding the phase transition is still a difficult topic for the undergraduate students and hopefully this paper can help them to overcome this difficulty.
Chaos to fractals Pulinchery, Prasanth; Pothyiodath, Nishanth; Murkoth, Udayanandan Kandoth
Momentum: Physics Education Journal Vol. 7 No. 1 (2023)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/mpej.v7i1.7502

Abstract

In undergraduate classrooms, while teaching chaos and fractals, it is taught as if there is no relation between these two. By using some non linear oscillators we demonstrate that there is a connection between chaos and fractals. By plotting the phase space diagrams of four nonlinear oscillators and using box counting method of finding the fractal dimension we established the chaotic nature of the nonlinear oscillators. The awareness that all chaotic systems are good fractals will add more insights to the concept of chaotic systems.
Some discussions on equipartition theorem Pulinchery, Prasanth; Perayil, Reshma; Pothyiodath, Nishanth; Aravind, Aravind; Murkoth, Udayanandan Kandoth
Momentum: Physics Education Journal Vol. 7 No. 2 (2023)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/mpej.v7i2.7571

Abstract

During the development of physics, we can see that the Equipartition Theorem (EPT) has been redefined many times. In this paper, we start with the description of the historical development of the theorem along with the various definitions given by different scientists. Then we found the expressions for classical, quantum, and discrete energy systems and redefined EPT.
Co-Authors Aravind, Aravind Murkoth, Udayanandan Kandoth Perayil, Reshma Pothyiodath, Nishanth