I Adhesive Forces: Bigger vs. Smaller Straws

AI Thread Summary
The discussion centers on the adhesive forces in smaller versus larger straws, specifically regarding water extraction at the top. It concludes that the adhesive force is greater in a larger tube than in a smaller one at the top. Consequently, it requires more energy to extract water from a smaller straw compared to a larger straw. The effects of gravity and capillary action are also considered, but the consensus is that the adhesive force dynamics favor larger tubes. Overall, extracting fluid from a smaller straw is more energy-intensive.
Dion
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Is the adhesive force greater in a smaller tube then a bigger tube at the top?

So would it take more energy to take out water at the top of the straw from the thinner straw?

Or would, due to gravity cancelling eventually the capillary rising, the adhesive force at the very top of the straw is equal to a thicker tube at the very top?

Thanks in advance
 
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Dion said:
Is the adhesive force greater in a smaller tube then a bigger tube at the top?
No, to other way around.
 
A.T. said:
No, to other way around.
So it takes less energy to take the same amount of fluid out of the smaller tube?
 
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