Reversible and irreversible process?

Thread starter Aladin
Start date Apr 7, 2007
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Irreversible Process Reversible

In summary, a reversible process can be undone by tiny changes to the system or its surroundings, while an irreversible process cannot be undone and has permanent effects on its surroundings. Examples of reversible processes include melting, freezing, and isothermal expansion, while examples of irreversible processes include combustion, diffusion, and mixing. Understanding these processes is important in predicting and controlling system behavior, determining efficiency, and identifying energy loss in fields such as thermodynamics, chemistry, and engineering.

Apr 7, 2007

Aladin

please explain me in easy words .
what is reversible and irreversibe process and give some daily examples.
thank you.

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Apr 9, 2007

Aladin

please explain me in simple words with examples.
thank you

Apr 9, 2007

FredGarvin

Science Advisor

We just had a discussion about this topic not too long ago.

https://www.physicsforums.com/showthread.php?t=161302&highlight=reversible

Last edited by a moderator: May 2, 2017

What is a reversible process?

A reversible process is a thermodynamic process that can be undone by infinitesimal changes to the system or its surroundings. This means that the system can return to its initial state without leaving any permanent effects on its surroundings.

What is an irreversible process?

An irreversible process is a thermodynamic process that cannot be undone by infinitesimal changes to the system or its surroundings. This means that the system cannot return to its initial state and there are permanent effects on its surroundings.

What are some examples of reversible processes?

Examples of reversible processes include melting and freezing of a substance, expansion and compression of a gas at constant temperature, and an ideal gas undergoing isothermal expansion or compression.

What are some examples of irreversible processes?

Examples of irreversible processes include combustion, diffusion, and mixing of different substances. These processes involve irreversible changes in the system and its surroundings.

Why is it important to understand reversible and irreversible processes in science?

Understanding reversible and irreversible processes is crucial in science because it helps us predict and control the behavior of systems. It also allows us to determine the efficiency of a process and identify any potential sources of energy loss. This knowledge is essential in many fields, including thermodynamics, chemistry, and engineering.