Ideal gas and Ideal Gas solution

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Discussion Overview

The discussion revolves around the relationship between ideal gas mixtures and ideal solutions, questioning whether an ideal gas mixture necessarily implies the existence of an ideal solution. The scope includes conceptual clarifications and definitions related to thermodynamics and gas behavior.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants suggest that an ideal gas mixture does not equate to an ideal solution, as gases do not dissolve in the same manner as solids in liquids.
  • Others argue that the concept of an ideal gas solution is valid and referenced in thermodynamics literature, indicating that ideal solutions behave like ideal gas mixtures with no interactions between gas molecules.
  • A participant defines an ideal solution as one where the volume change on mixing and the heat of mixing are both zero.
  • One participant reiterates that ideal gases maintain their volume and nature when mixed, although this point is seen as redundant by others.

Areas of Agreement / Disagreement

Participants express differing views on whether an ideal gas mixture can be considered an ideal solution, indicating that the discussion remains unresolved with multiple competing perspectives.

Contextual Notes

Definitions of ideal gas mixtures and ideal solutions are not universally agreed upon, and assumptions regarding gas behavior in mixtures may vary among participants.

gfd43tg
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Hello,

I am wondering, if you have an ideal gas mixture, does that automatically mean that the solution is an ideal solution? Or is it possible to have an ideal gas mixture that is not an ideal solution.

Thanks
 
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Gases don't dissolve into one another like solids do into liquids. What you have is just a mixture.
 
More to the point, we spend our lives immersed in a gaseous mixture called 'air', which is also not a solution.
 
I don't think the concept of an ideal gas solution is null. It's mentioned in my thermodynamics textbook and referred to quite often, in fact.
 
Last edited:
Maylis said:
Hello,

I am wondering, if you have an ideal gas mixture, does that automatically mean that the solution is an ideal solution? Or is it possible to have an ideal gas mixture that is not an ideal solution.

Thanks
An ideal solution is defined as an entity that behaves as an ideal gas mixture. The molecules of the various gases do not interact, so the volume change on mixing is zero and the heat of mixing is zero.

Chet
 
hello...
Ideal gases are the gases whose volume and nature do not change when mix it with the other gases.
 
Port Phillip said:
hello...
Ideal gases are the gases whose volume and nature do not change when mix it with the other gases.
This is the first response to this thread in nearly a year, and it adds virtually nothing to what already has already been said. I'm closing this thread.

Chet
 

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