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A Capillary Flow Analogy

  • Page ID
    2964
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    Chemical Concepts Demonstrated

    Demonstration

    Capillary tubing is attached a buret filled with water and clamped in a horizontal position.

    Use a stop watch and record time vs. volume measurements as the water flows out of the buret.

    Observations

    Plotting volume versus time yields a slightly curved line. Plotting the log of the volume versus the time yields a straight line.


    221.gif

    Explanation

    Because the log of the volume versus the time yields a straight line when plotted, the capillary flow appears to be first-order.

    Contributors



    A Capillary Flow Analogy is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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