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Thread: Viscosity

  1. #1 Viscosity 
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    What determines the viscosity of a substance. Is it a molecular pattern or something of the sort?


    Pierre

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  3. #2  
    Universal Mind John Galt's Avatar
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    Viscosity is determined by the interaction between the constituents of the fluid. Such interactions may be physical, or chemical depending upon the character of the fluid.


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    So you could have either:

    (a) physical reactions between molecules

    or

    (b) chemical reactions within the fluid.

    That is what I understand.
    Pierre

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  5. #4  
    Forum Sophomore L.E.A.P.'s Avatar
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    It is the links between the molecules, it's like sand but in a much smaller scale, there are no connections (0 viscosity). In water, H2O molecules are connected, that is were viscosity starts and if you take molasses for example, there are many more particles in a condenced form so more links between the molecules.

    Correct me if I am wrong, but I think I am right.
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  6. #5  
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    Read a millwright manual they give alot of usefull info on viscosity foundations and how it's rated
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    Forum Sophomore L.E.A.P.'s Avatar
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    Is my answer good or compleately empty of sense?
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    Alternate energy... or should we rather say alternate life?

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  8. #7  
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    P------------y--------------i----------------s
    ------h-------------s----------------c

    Alternate energy... or should we rather say alternate life?

    Are you interested in scientific high school projects? If you are, please contact me!

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    Libary u dunno I have one at home but Im not scanning the damn thing all libraries have a millwright manual thats what libraries are good for
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    Forum Sophomore L.E.A.P.'s Avatar
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    Ok, sure, I am not a native speaker, so spare me the insults...
    P------------y--------------i----------------s
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    Alternate energy... or should we rather say alternate life?

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  11. #10  
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    no insult intended I thought you where ribing me you wont find a millwright manual online was all i was sayin oh and millwright is an industrial mechanic if thats what you meant
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  12. #11  
    Universal Mind John Galt's Avatar
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    I was devestated to learn of the death of all your punctuation marks. :wink:
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  13. #12  
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    Thanks to all, but mainly to L.E.A.P. and Ophiolite for actually providing an explanation.
    Pierre

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  14. #13  
    Forum Sophomore L.E.A.P.'s Avatar
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    No problem. I am very impressed of what can devastate you Ophiolite, I hope you get over it...

    Sigh
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    that was a pretty crappy explanation what about molecule size, general temperature etc. viscosity is measure by having a measured amount of a given substance at a known temperature and timing how long it takes for it to pass through a specified sized hole there are many various standards on this. It is also effected by each molecules magnetic dipoles, molecule shape(which causes friction) and the list goes on not that I care what you know but if you want an indepth answer read a millwright manual mmmmk
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  16. #15  
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    Yeah, OK, but they explained the most basic causes. Of course, there must be many more factors that influence viscosity. Thanks for pointing some out.
    Pierre

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  17. #16  
    Forum Sophomore Matt Lacey's Avatar
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    Beky, I think you mean electric dipole, not magnetic. But yeah, it all depends on interactions between the molecules and there's quite a long list of different interactions ranging from the fairly strong (hydrogen bonds) to the pretty weak (dispersive).
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  18. #17  
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    Thank you all. Great help.
    Pierre

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