Are Colloids Solid or Liquid and What Modulus is Used to Measure Them?

AI Thread Summary
The discussion centers on the classification of colloids, emphasizing that they are not strictly solids or liquids but rather mixtures where solid particles are dispersed within a liquid. The conversation touches on the appropriate modulus to use for analyzing colloids, suggesting that the bulk modulus may be more relevant, albeit with some corrections. Participants highlight that colloids can include various mixtures, such as fog and mayonnaise, and note that they do not sediment, indicating their stability as mixtures of different phases. The scientific definition of colloids is also queried, with references to external resources for further information.
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are they solid/ liquid?
bulk modulus or shear modulus to be used?
 
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I don't know. What?
 
hmmm they are not a solid or a liquid. It's a classification of a mixture, not the state of the substance. Thus, a collid is mostly comprised of a liquid, while it has solid particle actually dispersed in it, no in the liquid form.

Now with moduls to use...that's a pure physics question and not certain. I would imagine it would be bulk, with some minor corrections.

pete

(you know that most water in the ocean and our rivers are colloids)
 
A colloid is a mixture of a gas with a solid or liquid dispersed in it. (FOG) Also a liquid with solid dispersed. If you can shine a beam of light through it and see the beam it is a colloid.
 
PeteGt said:
(you know that most water in the ocean and our rivers are colloids)
Are they? Colloids don't sediment. It is supposed to be a stable mixture of substances in different phases.
 
Whats the scientific term for colloids?
 
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