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Quantitiative Approach To Charles' Law

  • Page ID
    3029
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    Chemical Concept Demonstrated

    • Charles' Law

    Demonstration

    • A flask is filled with water and stoppered. A thermometer is inserted through the hole in the stopper, and a syringe is inserted through the stopper.
    • Immerse the flask in a ice-water bath to lower its temperature.
    • Record the temperature and the volume of the gas in the syringe as the gas warms to room temperature.
    chuck.gif

    Observations

    As the gas warms from the ice-water bath to room temperature, the volume of the syringe increases.

    Explanation

    A gas expands when it is heated and condenses when it is cooled. As the flask is warmed from 0ºC to room temperature (25°C), the gas expands inside the flask and slowly moves the syringe plunger. This demonstration demonstrates the relationship between temperature and volume (Charles' Law), and can be used to extrapolate absolute zero.

    Contributors


    Quantitiative Approach To Charles' Law is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by George Bodner.

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