The Science of Bubbles / Mr. Denjiro's Happy Energy!

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  • Опубликовано: 12 сен 2024
  • DENJIRO: Today's topic is bubbles. In this flask, we have a mixture of hydrogen peroxide solution and soap, which has been dyed blue. I'm going to add powdered potassium iodide to it. Why did all these bubbles burst out?
    Now, let's observe some bubbles. I'm going to use this mixture of water and soap to create bubbles that are the same size. Since it is hard to observe the bubbles when they are stacked up, I'll place a transparent board over them. We can see that the bubbles are mostly made up of air.
    In the first experiment, adding potassium iodide caused the hydrogen peroxide solution to break down into oxygen and water. Since the solution also had soap in it, the oxygen created through the chemical reaction caused bubbles to appear. The volume of oxygen that was created in this reaction was about 200 times the volume of hydrogen peroxide solution. That is why all those bubbles flew out.
    NARRATOR: Lathering soap makes it easier to clean things, and furthermore, you'll need less soap to clean since the volume increases.
    DENJIRO: When bubbles of the same size are sandwiched with a board, they form hexagons, much like a beehive. This is also known as a honeycomb structure.
    Let me show you an interesting phenomenon using bubbles. I'm going to put some bubbles on my hand and light them on fire! These bubbles were made using flammable gas. Although it seems very hot, heat moves upwards, so my hand didn't feel much heat.
    I hope energy will bring you all happiness. Our magic word is "Happy Energy!"

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