Drawing a PV Diagram for 3 Processes: Help Needed!

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    Diagram Drawing
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SUMMARY

The discussion focuses on drawing a Pressure-Volume (PV) diagram that includes three distinct processes: isothermal expansion, isobaric compression, and adiabatic compression. Key steps to create a clear and accurate diagram include formulating the relevant equations for pressure and volume, relating these equations to known mathematical graphs, and utilizing visual references from online resources. Participants emphasize the importance of selecting a diagram format that aligns with instructor expectations to ensure clarity and accuracy.

PREREQUISITES
  • Understanding of isothermal, isobaric, and adiabatic processes in thermodynamics
  • Familiarity with Pressure-Volume (PV) diagrams
  • Basic knowledge of mathematical graphing techniques
  • Ability to interpret and utilize online resources for visual references
NEXT STEPS
  • Research the mathematical equations governing isothermal, isobaric, and adiabatic processes
  • Learn how to accurately plot PV diagrams using software tools like MATLAB or Python's Matplotlib
  • Explore standard PV diagram examples to understand common formats and styles
  • Practice sketching PV diagrams based on different thermodynamic processes
USEFUL FOR

Students studying thermodynamics, physics educators, and anyone involved in creating or interpreting PV diagrams for thermodynamic processes.

Abidal
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Hello everyone,
I was asked in a physics exam to draw a pv digram that consists of 3 process as below:
1) isothermal expansion
2)Isobaric compression
3)Adiabatic compression

whenever I try to draw it I come up with a really untidy diagram so can anyone help please !
 
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To draw any diagram in physics:
1.Formulate the equations that relate the variables, which will eventually be your co-ordinate axes (i mean Pressure and Volume in this case)
2. Then try to relate the equation obtained with any standard mathematical equation whose graph is know.
3. If you don't find any standard mathematical equation whose graph is know to you, there are certain steps to be followed to draw a rough sketch of the graph.
 
Do a google images search on "PV diagram". Browse, pick a format that you like. More importantly, pick a format that your instructor will like!
 

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