Colloids solid or liquid?

In summary, the conversation discusses the classification of colloids as a mixture of a gas, liquid, or solid dispersed in another substance. The question of whether to use bulk modulus or shear modulus is raised, but it is determined that this is a physics question and not certain. The conversation also mentions that water in oceans and rivers is considered a colloid and provides a link for further description. The scientific term for colloids is also mentioned.
  • #1
elaine216@hotmail.co
4
0
are they solid/ liquid?
bulk modulus or shear modulus to be used?
 
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  • #2
I don't know. What?
 
  • #3
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)
 
  • #4
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.
 
  • #6
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.
 
  • #7
Whats the scientific term for colloids?
 
  • #8

1. What is the difference between a colloid solid and a colloid liquid?

A colloid solid is a substance that is in a solid state, but contains small particles of another substance dispersed within it. A colloid liquid, on the other hand, is a liquid that has small particles of another substance suspended within it. The main difference is the state of matter of the two substances.

2. How are colloids formed?

Colloids are formed through a process called dispersion, where small particles of one substance are evenly distributed within another substance. This can occur through physical means, such as stirring or shaking, or through chemical reactions.

3. What are some examples of colloids?

Some common examples of colloids include milk (a colloid liquid of fat particles dispersed in water), gelatin (a colloid solid of protein particles dispersed in water), and fog (a colloid liquid of water particles dispersed in air).

4. How do colloids behave differently than pure substances?

Colloids have unique properties due to their dispersed particle structure. For example, they can exhibit the Tyndall effect, where light is scattered by the particles, making the colloid appear cloudy or milky. They also have different optical and electrical properties than pure substances.

5. What are the applications of colloids?

Colloids have a wide range of applications in various industries, such as food, pharmaceuticals, and cosmetics. They are used to stabilize emulsions, create gels or foams, and improve the texture and appearance of products. They also have important roles in medical treatments, such as drug delivery systems and diagnostic imaging agents.

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