On a P-V diagram, if the pressure stays constant and the volume

Click For Summary
SUMMARY

In an isobaric process represented on a P-V diagram, if the pressure remains constant while the volume increases, the temperature of an ideal gas increases. This conclusion is derived from the polytropic relation P*Vn = constant, specifically using the formula T2/T1 = (V1/V2)(n-1). For an isobaric process, the value of n is equal to 0, confirming that temperature rises as volume expands.

PREREQUISITES
  • Understanding of ideal gas laws
  • Familiarity with P-V diagrams
  • Knowledge of polytropic processes
  • Basic thermodynamic principles
NEXT STEPS
  • Study the ideal gas law and its applications
  • Learn about polytropic processes and their equations
  • Explore the implications of isobaric processes in thermodynamics
  • Investigate the relationship between temperature, pressure, and volume in real gases
USEFUL FOR

Students and professionals in thermodynamics, mechanical engineers, and anyone studying the behavior of gases under varying pressure and volume conditions.

P-Jay1
Messages
32
Reaction score
0
On a P-V diagram, if the pressure stays constant and the volume increases, what happens to the temperature?

Does it increase, decrease, or stay the same?
 
Physics news on Phys.org


Assuming an ideal gas you can look at polytropic relations where P*V**n = constant.

This leads to T2/T1 = (V1/V2)**(n-1)

What do you know about n for an isobaric process?
 

Similar threads

Replies
4
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 6 ·
Replies
6
Views
973
  • · Replies 2 ·
Replies
2
Views
2K
Replies
8
Views
1K
Replies
16
Views
4K
  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 2 ·
Replies
2
Views
1K