Which Side of the Carnot Cycle Diagram Represents Key Processes?

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Discussion Overview

The discussion revolves around understanding the representation of different processes in a Carnot cycle diagram for an ideal gas. Participants seek to clarify which sides of the diagram correspond to isothermal expansion/compression, work done by or on the gas, adiabatic expansion/compression, and the heat added or exhausted. The scope includes conceptual understanding and diagram interpretation.

Discussion Character

  • Conceptual clarification, Debate/contested

Main Points Raised

  • Some participants inquire about how to identify which side of the Carnot cycle diagram represents isothermal expansion or compression.
  • Others question how to determine which side shows work done by the gas or on the gas.
  • A participant suggests that the diagram is drawn on a plane with axes representing physical variables, implying that understanding these variables is key to interpreting the diagram.
  • Some participants reference external resources, such as Wikipedia, to aid in their understanding of the Carnot cycle.
  • There is a suggestion that studying the diagram can reveal which side represents heat taken in from the hot reservoir and work done by the gas.

Areas of Agreement / Disagreement

Participants express uncertainty and seek clarification on the representation of processes in the Carnot cycle diagram. No consensus is reached regarding the identification of specific sides of the diagram.

Contextual Notes

Participants mention the need for a deeper analysis of the physical variables represented in the diagram, indicating that assumptions about these variables may affect interpretations. The discussion does not resolve the specific identification of processes in the diagram.

Faiq
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Consider a Carnot's cycle diagram for an ideal gas. It will resemble a square.
How do we know which side represents isothermal expansion/compression, which side shows work done by the gas or on the gas, adiabatic expansion/compression and which side represents the heat was added/exhausted?
 
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Faiq said:
Consider a Carnot's cycle diagram for an ideal gas. It will resemble a square.
How do we know which side represents isothermal expansion/compression, which side shows work done by the gas or on the gas, adiabatic expansion/compression and which side represents the heat was added/exhausted?

Take a look here https://en.wikipedia.org/wiki/Carnot_cycle
 
Faiq said:
Consider a Carnot's cycle diagram for an ideal gas. It will resemble a square.
How do we know which side represents isothermal expansion/compression, which side shows work done by the gas or on the gas, adiabatic expansion/compression and which side represents the heat was added/exhausted?

the diagram must have been drawn on a plane having axes X,Y and they must be representing some physical variables and the nature of changes in those set of variables , representing the changes in the state of the system actually gives you the identity/characteristic of those changes.
so a carnot cycle represents a 'system going through a cycle of changes' analyse further taking a real example ...an engine ...of use in daily life.or go to primary concept of drawing a cycle of changes on a say gas in a cylinder with a piston blocking its escape.
 
Faiq said:
Thanks for the reference. Btw how can I learn about which side shows work done by the gas or on the gas?

If you study the Carnot cycle diagram, you'll see which side of the diagram of the "Carnot engine" represents heat taken in from hot reservoir and which represents work done by the gas, among the other things. Now, work can be understood by the kind of process you have on each side and the heat taken or given by the engine.
 

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