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Which of the following conditions should be met to make a process perfectly reversible? Check all that apply. Any mechanical interactions taking place in the process should be frictionless. 0 0 0 Any thermal interactions taking place in the process should occur across infinitesimal temperature or pressure gradients. The system should not be close to equilibrium.

Answer :

Option A and B; Any mechanical interactions taking place in the process should be frictionless. Any thermal interactions  that take place throughout the process ought to cross negligible gradients in either pressure or temperature.

For the process to be perfectly reversible, there should be no non-conservative forces acting as it will lead to energy dissipation. Secondly, the process should occur in very small steps so that it may be reversed at any point in the process. If a thermodynamic system can exchange energy with another system through the process of heat, the two systems are said to be in thermal interactions. Since real systems are almost never completely thermally isolated from their surroundings, perfect thermal isolation is an ideal.

It is impossible for heat to pass between two solid bodies when they are in contact. Thermal contact conductance is a term used to investigate heat transfer between such bodies. The study of how heat and other types of energy interact is the subject of the physics discipline known as thermodynamics.

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