Visualization of the Kinetic Gas Theory Concept through the Air Expansion Experiment in Balloons as a Simple Practical Media
Keywords:
Balloon volume, gas expansion, kinetic energy, temperature change, water temperatureAbstract
This study was conducted to understand how temperature variations affect the change in air volume within a balloon, referencing the key concepts in the Kinetic Gas Theory. In the experimental procedure, a balloon with an initial diameter of 20 cm was immersed in water at temperatures of 30°C, 45°C, and 60°C, with three repetitions for each condition to ensure stable results. Observations showed that the diameter of the balloon increased as the water temperature was raised. This increase is related to the rise in the kinetic energy of the gas particles when heated, causing the pressure against the balloon's walls to increase, which results in a larger volume. These findings demonstrate a direct relationship between temperature and changes in gas volume within a closed space. This discovery explains that heating has a significant effect on the expansion of air inside the balloon and supports the fundamental principle of gas behavior in response to changes in thermal energy. Overall, the study emphasizes that temperature variation plays an important role in volume changes, and the results can serve as a foundation for teaching or research related to gas dynamics.
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