A very strange curve on P-V diagram

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SUMMARY

The discussion centers around the representation of nitrogen states on a Pressure-Volume (P-V) diagram, particularly when the temperature exceeds the critical temperature. It is established that the state of nitrogen in this scenario is depicted on an isotherm curve. Participants referenced "Introduction to Engineering Thermodynamics" by Sonntag and Borgnakke as a source for understanding these thermodynamic principles. The inquiry specifically seeks clarification on the curve associated with point A on the diagram.

PREREQUISITES
  • Understanding of P-V diagrams in thermodynamics
  • Knowledge of critical temperature concepts
  • Familiarity with isotherm curves
  • Basic principles of nitrogen thermodynamics
NEXT STEPS
  • Study the characteristics of isotherm curves in thermodynamic diagrams
  • Research the implications of critical temperature on gas behavior
  • Examine the superheated region in thermodynamics
  • Explore the application of nitrogen in engineering thermodynamics
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Students and professionals in thermodynamics, engineers working with gas properties, and anyone studying the behavior of nitrogen in thermodynamic systems.

mech-eng
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Hi. For a state of nitrogen in which temperature is higher than the critical temperature the state is presented on a different curve. I do not remember any curve for superheated region.

upload_2017-4-26_22-45-39.jpeg


Source: Introduction to Engineering Thermodynamics by Sonntag/Borgnakke.
Thank you.
 
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mech-eng said:
Hi. For a state of nitrogen in which temperature is higher than the critical temperature the state is presented on a different curve. I do not remember any curve for superheated region.

View attachment 197173

Source: Introduction to Engineering Thermodynamics by Sonntag/Borgnakke.
Thank you.
Is there a question here?
 
Chestermiller said:
Is there a question here?

Yes, what is that curve which point a stands on?
Thank you.
 
mech-eng said:
Yes, what is that curve which point a stands on?
Thank you.
It's an isotherm, for a temperature above the critical temperature.
 

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