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Describe a Simple Experiment to Illustrate that Molecules Are Not at Rest, but They Constantly Move. - Physics

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Question

Describe a simple experiment to illustrate that molecules are not at rest, but they constantly move.

Solution

Take a beaker. Fill it partly with water. Add some lycopodium powder in the beaker containing water. Stir the contents of the beaker with a glass rod. Take out a few drops of this suspension on a glass plate. Place it on the table and illuminate it with a table lamp. Observe the glass plate through a microscope. It is found that the fine particles of lycopodium powder move rapidly in a random manner and their path is zig zag as shown in the figure below.

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Describe a Simple Experiment to Illustrate that Molecules Are Not at Rest, but They Constantly Move. Concept: Concept of Matter and And Composition.
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