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I2-26: LEIDENFROST PHENOMENON 8 years 5 months ago #1296

  • zzfixk21
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ID Code: I2-26
Purpose: Demonstrate the Leidenfrost effect.
Description: Turn on the hot plate to high for about two minutes to pre-heat the aluminum sheet/skillet. Then squirt a few large drops of water (with green food coloring to make it visible) onto the aluminum skillet. The water forms drops which skitter around on the hot plate for an unexpectedly long duration, because of an insulating layer of water vapor (steam). Big drops can be created which will persist for a minute or longer, while executing interesting oscillations. This is known as the Leidenfrost phenomenon.
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