How to find volume of irregular & porous material spong

[Nishaaa]

< Mentor Note -- thread moved to HH from the technical physics forums, so no HH Template is shown >[/color]

How to find volumeof irregular and porous material like sponge?

 

[haruspex]

How to find volumeof irregular and porous material like sponge?

How did Aesop's crow get to drink the water?

 

[Nishaaa]

How did Aesop's crow get to drink the water?

soaking sponge in water (measured amount) and then measurmnt of voume by displacement. Is it a right way?

 

[haruspex]

soaking sponge in water (measured amount) and then measurmnt of voume by displacement. Is it a right way?

Sounds ok to me. One question is whether there might be any airspaces the water cannot reach, but then it is not clear whether you would want count this as part of the porous material's volume or not.

 

[berkeman]

soaking sponge in water (measured amount) and then measurmnt of voume by displacement. Is it a right way?

There are at least a couple other ways I can think of to do it. Is this question for your schoolwork? What other ways can you think of doing it?

 

[Bystander]

"
Gibbs dividing surface (or Gibbs surface10) is a geometrical surface chosen parallel to the interface defined in §1.1.2 and used to define the volumes of the bulk phases in applying the foregoing definition to the calculation of the extent of adsorption, and of other surface excess properties.

For flat or only slightly curved surfaces one is free to define the position of the Gibbs surface in the manner most convenient for the discussion of a particular problem. In what follows it is assumed that this freedom exists; it must be remembered, however, that for surfaces whose radii of curvature approach molecular dimensions, the definitions become ambiguous." --- from "definition of adsorbent volume," google.

 

[Nishaaa]

There are at least a couple other ways I can think of to do it. Is this question for your schoolwork? What other ways can you think of doing it?

What are the other ways?

 

[Nishaaa]

Sounds ok to me. One question is whether there might be any airspaces the water cannot reach, but then it is not clear whether you would want count this as part of the porous material's volume or not.

But it would be heavier enough so that volume can be measured by displacement method. There can be a chance that it dies not absorb water in first place. Any other method that you can suggest.

 

[berkeman]

What are the other ways?

You go first.

And you did not answer my question:

Is this question for your schoolwork?

 

[Nishaaa]

Yes for school

 

[Nishaaa]

You go first.

And you did not answer my question:

I apologise. Yes school work

 

[berkeman]

When it's for schoolwork, you need to show your best efforts to solve the problem. We cannot provide solutions for you. So what other ways come to mind to find the volume?