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B Question about vaporization

  1. Jan 3, 2018 #1
    After completing an experiment observing a glass of water on a switched-on cooker with an infrared camera, some water drops accidentally landed on the surface of the hot cooker and started to bounce from one point to another until they finally vaporized. I wonder why the drops instead of vaporizing at the same time they came in touch with the hot surface, they just kept bouncing from it. Does it have something to do with the water vapour preventing the drops to vaporize instantly? Thank you for your answers!
     
  2. jcsd
  3. Jan 3, 2018 #2

    hilbert2

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    The pressure of the vapor formation on the bottom surface of the drops prevents them from contacting the surface of the cooker - causing them to move quite frictionlessly on the metal surface for some time before evaporating completely.
     
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