ABSTRACT

Thermodynamics is a field in science and technology for a proper understanding of heat and temperature flow in any system and their relations with energy and work. In other words, the field of thermodynamics relates the flow of heat caused due to the temperature difference and the energy contained in the system. In order to understand the concept of reversibility or irreversibility, one must know the proper definition of a process. A process may be defined as a phenomenon in which the system in consideration has undergone a change or a transformation to the final state from its initial state. It may be noted that a thermodynamic process is accompanied with changes in the system properties such as volume, temperature, pressure, entropy, enthalpy, etc. Entropy is a property of the thermodynamic systems. Entropy measures the randomness or disorder of a system. Higher entropy denotes a highly disordered system, whereas a well-organized system is represented by a lower entropy system.