Reversible and irreversible processes in thermodynamics pdf

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reversible and irreversible processes in thermodynamics pdf

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One of the most important notions of thermodynamics is the notion of reversible and irreversible processes. A thermodynamic process is defined as a totality of continuously changing states of a thermodynamic system. Two processes can be imagined to develop along the same path between any two states 1 and 2 of a system: from state 1 to state 2 and vice versa, from state 2 to state 1 , the so-called forward and reverse processes. A process is said to be reversible if after the process has been completed in the forward and reverse directions, the system returns into its initial state. Thus, the totality of the forward and reverse processes causes no changes in the surrounding medium.

Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. It only takes a minute to sign up. I asked the professor what the issue is with the answer, and she could not articulate a clear reason, and eventually said she'll re-think it. In a reversible process, at each point along the process path, the system is only slightly removed from being in thermodynamic equilibrium with its surroundings. So the path can be considered as a continuous sequence of thermodynamic equilibrium states. For an irreversible process, the system is not close to thermodynamic equilibrium with its surroundings at each point along the path.

The basic difference between reversible and irreversible processes is that in the reversible process the system remains in thermodynamic equilibrium, while in the irreversible process the system does not remain in thermodynamic equilibrium. In the reverse process, the system passes through the same stages as in the direct process but thermal and mechanical effects at each stage are exactly reverse. If heat is absorbed in the direct process, it will be given out in the reverse process. Similarly, if work is done by the system in the direct process, work will be done on the system in the reverse process. Hence the system will restore to the original state. The phenomenon of undergoing reversible change is also called reversibility.

Difference between reversible and irreversible process in thermodynamics

When the system undergoes a change from its initial state to the final state, the system is said to have undergone a process. During the thermodynamic process, one or more of the properties of the system like temperature, pressure, volume, enthalpy or heat, entropy, etc. The second law of thermodynamics enables us to classify all the processes under two main categories: reversible or ideal processes and irreversible or natural processes. The process in which the system and surroundings can be restored to the initial state from the final state without producing any changes in the thermodynamics properties of the universe is called a reversible process. In the figure below, let us suppose that the system has undergone a change from state A to state B.

In a reversible process things happen very slowly, without any resisting force, without any space limitation → everything happens in a highly organized way (it is.


Hello readers, in this article, we will be going to see the Difference between Reversible Process and Irreversible Process in Thermodynamics and I hope you can clear this concept by reading this paper. So before jumping into the differences, let me give you the general idea of What is Reversible and Irreversible processes in thermodynamics. Reversible Process is a process that can be made to exactly replace its path without suffering any deviation. An irreversible process is a process that cannot be made to exactly retrace its path without suffering its deviation is called an irreversible process. Most of the processes in nature are irreversible.

In thermodynamics , a reversible process is a process whose direction can be reversed to return the system to its original state by inducing infinitesimal changes to some property of the system's surroundings. Having been reversed, it leaves no change in either the system or the surroundings. Since it would take an infinite amount of time for the reversible process to finish, perfectly reversible processes are impossible. However, if the system undergoing the changes responds much faster than the applied change, the deviation from reversibility may be negligible.


 - Он нацелен на фильтры безопасности. Фонтейн побледнел. Он, конечно, понял, чем это грозит: червь сожрет фильтры, содержащие информацию в тайне, и без них она станет доступна всем без исключения.

Reversible process (thermodynamics)

В шифровалке. Она не могла себе этого представить. - С-слушаюсь, сэр.  - Она выдержала паузу.

 Тот, что был в парке. Я рассказал о нем полицейскому. Я отказался взять кольцо, а эта фашистская свинья его схватила. Беккер убрал блокнот и ручку. Игра в шарады закончилась. Дело принимает совсем дурной оборот.

Позвони в технический отдел. - В куполе нет света. - У тебя галлюцинации. Тебе пора отправляться домой.  - Он перевел взгляд на схему.


  • Figure 1. Talon R. - 15.05.2021 at 06:28
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  • Summary. A reversible process is one in which both the system and its environment can return to exactly the states they were in by following the reverse path. An irreversible process is one in which the system and its environment cannot return together to exactly the states that they were in. Josette A. - 18.05.2021 at 06:36
  • Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. Adrien T. - 19.05.2021 at 13:23