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A Capillary Flow Analogy

Last updated

Feb 22, 2023
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- Additional Demos
- A Four-Color Oscillating Reaction

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Chemical Concepts Demonstrated

Order of a reaction, first-order kinetics

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.

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

Dr. George Bodner (Perdue University)

Chemical Concepts Demonstrated

Demonstration

Observations

Explanation

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