What is the Joule Thomson Effect and why does it matter for real gases?

  • Context: Undergrad 
  • Thread starter Thread starter jarman007
  • Start date Start date
  • Tags Tags
    Joule Thomson
Click For Summary
SUMMARY

The Joule-Thomson Effect describes the temperature change of a real gas when it expands adiabatically, which can result in an increase in temperature contrary to the behavior of ideal gases. This phenomenon is significant because it highlights the differences between ideal and real gas behavior, particularly in applications involving gas liquefaction and refrigeration. The Joule-Thomson coefficient is crucial for understanding these temperature changes and historically contributed to the development of the absolute Kelvin temperature scale.

PREREQUISITES
  • Understanding of adiabatic processes in thermodynamics
  • Knowledge of real versus ideal gas behavior
  • Familiarity with the Joule-Thomson coefficient
  • Basic principles of gas liquefaction and refrigeration cycles
NEXT STEPS
  • Research the calculation and application of the Joule-Thomson coefficient in real gases
  • Explore the principles of gas liquefaction techniques
  • Study the historical development of the Kelvin temperature scale
  • Learn about isentropic versus adiabatic processes in thermodynamics
USEFUL FOR

Students and professionals in thermodynamics, engineers working with refrigeration systems, and anyone interested in the practical applications of real gas behavior.

jarman007
Messages
11
Reaction score
0
It occurs when a real gas is allowed to expand adiabatically


we all know when a ideal gas is expanded adiabatically it temperature decreases
so real gas should do the same with minor difference




so what is all the fuss about we all know it will happen

why is it given a special name
 
Science news on Phys.org
Question: did you look at wikipedia before posting?

jarman007 said:
we all know when a ideal gas is expanded adiabatically it temperature decreases
You seem to be thinking of isentropic, not general, adiabatic expansion.

jarman007 said:
so real gas should do the same with minor difference
so what is all the fuss about we all know it will happen
This can increase temperature.
 
So unique thing about joule thomson effect is increasing of temperature on expansion
 
In addition to the above comments, historically, measurement of the Joule-Thompson coefficient led to the development of the absolute (Kelvin) temperature scale.
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
7K
  • · Replies 17 ·
Replies
17
Views
14K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 135 ·
5
Replies
135
Views
8K
  • · Replies 22 ·
Replies
22
Views
6K
Replies
3
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K