Ideal Gas Assumptions: Can it Turn into a Liquid?

Click For Summary

Discussion Overview

The discussion revolves around the assumptions of the ideal gas law, particularly whether it allows for the possibility of a gas transitioning into a liquid state. Participants explore the implications of these assumptions in relation to temperature and pressure conditions.

Discussion Character

  • Conceptual clarification
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant questions whether the ideal gas law assumes that a gas cannot turn into a liquid.
  • Another participant clarifies that the ideal gas law assumes no interactions between gas particles, except for elastic collisions, which is a key aspect of its application.
  • A participant suggests that for a monochromatic gas near its condensation temperature, the ideal gas law may not be as accurate.
  • It is noted that the ideal gas law is most accurate for monoatomic gases at high temperatures and low pressures, but its applicability near condensation may depend on the required measurement accuracy and experimental specifics.

Areas of Agreement / Disagreement

Participants express differing views on the applicability of the ideal gas law near the condensation point, indicating that there is no consensus on its reliability under those conditions.

Contextual Notes

Participants highlight the limitations of the ideal gas law, particularly regarding the assumptions of particle interactions and the conditions under which the law is most valid.

GrizzlyBat
Messages
36
Reaction score
0
I was wondering if it assumed the gas could not turn into a liquid?
 
Science news on Phys.org
GrizzlyBat said:
I was wondering if it assumed the gas could not turn into a liquid?

You need to be a bit more "explanatory" with your question. For example, it is clearly stated as part of the ideal gas law assumption that the gas particles do not interact with one another other than making elastic collisions. Did you understand this part of the ideal gas law?

Now think about what a "solid" is. A "solid", by definition, means that the particle form BONDS with each other to be able to maintain a rigid shape.

Does that answer your question?

Zz.
 
Nah, yeah that is what I thought. Just was not sure. So does that mean for a monochromatic gas that is near the temperature at which it turns into a liquid, the ideal gas law is not so good?
 
The ideal gas law is most accurate for monoatomic gases at high temperatures and low pressures. Although, I assume, depending on the necessary accuracy of the measurements and the specifics of the experiment, one could still use the Ideal Gas Law for temperatures near condensation.
 

Similar threads

Undergrad How to calculate the mass of gas in a tank?
  • · Replies 109 ·
4
Replies
109
Views
9K
Undergrad Thermodynamics and ideal gas law concepts
  • · Replies 14 ·
Replies
14
Views
2K
Graduate Can Hamson-Linde cycle liquidize N2?
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Derivation of ideal gas heat capacity relationship
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Why is estimation of ##\frac{Pv}{RT}=1+BP+CP^2+...## interesting?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad So what are the definitions of gas, liquid, solid?
  • · Replies 20 ·
Replies
20
Views
2K
Undergrad Focus Problem for Entropy Change in Irreversible Adiabatic Process
  • · Replies 60 ·
3
Replies
60
Views
11K
Undergrad Application of the ideal gas law
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Variation of air temperature with altitude
  • · Replies 28 ·
Replies
28
Views
3K
Undergrad Does Callen's Entropy Expression for a General Ideal Gas Contain an Error?
  • · Replies 19 ·
Replies
19
Views
3K