Reversible Process: Why is it Important?

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Discussion Overview

The discussion revolves around the importance of reversible and quasistatic processes in thermodynamics. Participants explore the definitions, implications, and reasons for preferring these processes in various contexts, including theoretical and practical applications.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • Some participants suggest that in a reversible or quasistatic process, energy is not lost as heat, implying a connection between these processes and efficiency.
  • Others question the necessity of reversible processes, seeking clarification on their significance, particularly in maintaining thermodynamic equilibrium and well-defined measurable parameters.
  • A participant notes that the second law of thermodynamics is crucial for understanding the nature of reversible versus irreversible processes, emphasizing the need for definitions and the concept of thermodynamic equilibrium states.

Areas of Agreement / Disagreement

Participants express uncertainty regarding the reasons for preferring reversible processes, with no clear consensus on their importance or implications. Multiple viewpoints exist on the definitions and characteristics of these processes.

Contextual Notes

The discussion highlights potential limitations in understanding the definitions of reversible and quasistatic processes, as well as the implications of the second law of thermodynamics, which remain unresolved.

Pushoam
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Does this mean that in reversible process\ quasistatic process, the energy is not lost as heat and the process in which the energy is not lost as heat is known as reversible process\quasistatic process?

I want to know why we want to have reversible \ quasistatic process.
 

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Look at the sentence after the highlighted one.
 
mjc123 said:
Look at the sentence after the highlighted one.
I did that.
Yet,I have not understood why we want reversible process\quasistatic process?
Is it because in quasistatic process, the system remains in thermodynamic eqbm. and so the parameters defining the system are well defined and can be measured?
 
The second law of thermodynamics quantifies the kinds of processes that can and can't occur spontaneously. In order to provide this quantification (mathematically), we must first understand reversible and irreversible processes, and their definitions. If a closed system experiences a reversible process, it passes through a continuous sequence of thermodynamic equilibrium states. This can be used as the definition of an internally reversible process. Any process that does not satisfy this definition for the system is irreversible.
 

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