Thermodynamics: Understanding Isobaric Processes

  • Context: Undergrad 
  • Thread starter Thread starter oftigus
  • Start date Start date
  • Tags Tags
    Isobaric
Click For Summary
SUMMARY

This discussion focuses on isobaric processes in thermodynamics, specifically how temperature changes can affect volume while maintaining constant pressure. An example provided is a balloon, where heating the air inside causes it to expand without altering the atmospheric pressure. The conversation also highlights applications in engines, where heat is supplied to a chamber to drive a piston under constant external load. Understanding these principles is crucial for studying thermodynamic systems.

PREREQUISITES
  • Basic knowledge of thermodynamics concepts
  • Understanding of gas laws, particularly Charles's Law
  • Familiarity with the ideal gas equation
  • Experience with practical examples of isobaric processes
NEXT STEPS
  • Study the implications of Charles's Law in real-world applications
  • Explore the ideal gas law and its relevance to isobaric processes
  • Investigate the role of heat transfer in thermodynamic systems
  • Examine case studies of isobaric processes in engineering contexts
USEFUL FOR

Students of thermodynamics, engineers working with heat engines, and anyone interested in the practical applications of isobaric processes in various systems.

oftigus
Messages
5
Reaction score
0
Hello.I'm studying thermodynamics and I'm having trouble understanding processes where the pressure is constant.How can temperature alone modify the volume without doing pressure.An example would be appreciated.Thanks.
 
Science news on Phys.org
Usually, systems with constant pressure are at atmospheric pressure and have some way to change their volume. Look at a balloon, for example: If you heat the air inside, it will expand, while the pressure is (nearly) constant.
 
mfb said:
Usually, systems with constant pressure are at atmospheric pressure and have some way to change their volume. Look at a balloon, for example: If you heat the air inside, it will expand, while the pressure is (nearly) constant.
You can also take away the balloon and use it in modelling atmospheric changes.
In an engine, you could supply heat to a chamber to drive a piston that's subject to constant external load over some part of the cycle.
 

Similar threads

  • · Replies 8 ·
Replies
8
Views
4K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 22 ·
Replies
22
Views
6K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 22 ·
Replies
22
Views
4K
  • · Replies 61 ·
3
Replies
61
Views
7K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 14 ·
Replies
14
Views
3K
  • · Replies 5 ·
Replies
5
Views
8K
  • · Replies 12 ·
Replies
12
Views
3K