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anonymous

  • one year ago

Consider the following geometric solids. A sphere with a ratio of surface area to volume equal to 0.08 m-1. A right circular cylinder with a ratio of surface area to volume equal to 2.1 m-1. What results would you expect if these two models were compared in a diffusion test?

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  1. anonymous
    • one year ago
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    A. The rate of diffusion would be the same for the two models. B. The rate of diffusion would be faster for the right cylinder. C. The rate of diffusion would be slower for the right cylinder. D. The rate of diffusion would be faster for the sphere.

  2. anonymous
    • one year ago
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    @jenny1994

  3. anonymous
    • one year ago
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    suppose they have the same Volume ... which has bigger surface Area? (what does diffusion go _thru_?)

  4. anonymous
    • one year ago
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    d

  5. anonymous
    • one year ago
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    @lightgrav

  6. anonymous
    • one year ago
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    @lightgrav

  7. anonymous
    • one year ago
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    d ?? the stuff needs to diffuse thru the surface, and the cylinder is shaped like a pencil! (the cylinder's surface Area is 24x as large as the sphere's Area). These ratios are Area/Volume, since they have units 1/m .

  8. anonymous
    • one year ago
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    so it will be the same

  9. anonymous
    • one year ago
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    how long will it take the stuff to get from the center of the spherical lump to the surface? it has to go 24x as far ... and the diffusion distance goes like sqrt(t) ... or diffusion time goes like d^2

  10. anonymous
    • one year ago
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    so its 24^2

  11. anonymous
    • one year ago
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    don't wad up your wet socks - they won't dry!

  12. anonymous
    • one year ago
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    bruh so its either b or c

  13. anonymous
    • one year ago
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    HELP

  14. anonymous
    • one year ago
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    the stretched sock dries fast. the stretched sock is shaped like the cylinder. drying takes place by diffusion, so the stuff only gets out if it's near the surface..

  15. anonymous
    • one year ago
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    so b

  16. anonymous
    • one year ago
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    so b or d

  17. anonymous
    • one year ago
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    come on! what don't you get, here? c and d mean the same thing (so you _know_ neither of them can be right!)

  18. anonymous
    • one year ago
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    b

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