Temperature of a liquid and solubility of a gas

Click For Summary

Discussion Overview

The discussion revolves around the relationship between temperature and the solubility of gases in liquids, specifically focusing on the behavior of gases like CO2 and O2 in water. Participants explore the nature of this relationship, potential formulas, and factors influencing gas solubility.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant seeks a formula that accurately relates temperature to gas solubility, noting an inverse relationship and a specific observation about solubility decreasing as temperature increases.
  • Another participant questions what factors contribute to the differing solubility of gases, using the diffusion rates of CO2 and O2 as a point of discussion.
  • A later reply suggests that there is no universal formula for this relationship and emphasizes the need for empirical data to understand solubility behavior, mentioning that solubility can vary with temperature.

Areas of Agreement / Disagreement

Participants express differing views on the existence of a formula relating temperature and gas solubility, with some suggesting empirical measurement is necessary. There is no consensus on a specific formula or the factors influencing solubility.

Contextual Notes

Limitations include the lack of specific conditions under which the solubility behavior is observed and the dependence on empirical data rather than theoretical models.

nautica
I am looking for a formula that would relate temperature and solubility of a gas.

I know that solubility has an inverse relationship and I also know that as the temperature of water increases from 0 C to around 30 C, the solubility of a gas in the water decreases to about half.

Surely there is a formula that is more accurate than this.

Thanks
nautica
 
Science news on Phys.org
Also, what would make one gas be more soluble than another.

For examplle the diffusion rate of CO2 is .86 that of O2, given that rate is inversly porportional to the square root of the molar mass. But, CO2 appears to be diffusion faster b/c it is more soluble.

thanks
Nautica
 
^^^^^^^^^^^^^^^^^^^^^^
 
Two phase mixture equilibria? No "formula." Measure and fit the data. Solubilities can increase or decrease with temperature (He is an example). Is there something more specific you're seeking?
 

Similar threads

  • · Replies 28 ·
Replies
28
Views
4K
  • · Replies 109 ·
4
Replies
109
Views
10K
  • · Replies 5 ·
Replies
5
Views
4K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 14 ·
Replies
14
Views
2K
  • · Replies 20 ·
Replies
20
Views
2K
  • · Replies 20 ·
Replies
20
Views
4K
  • · Replies 34 ·
2
Replies
34
Views
4K