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प्रश्न
Write an Explanation.
Regelation
स्पष्ट कीजिए
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उत्तर
- Regelation is the phenomenon where ice melts under applied pressure and immediately refreezes when the pressure is removed.
- Applying pressure lowers the melting point of ice, turning it into liquid water. Once the pressure is released, the melting point returns to normal (0°C), and the water instantly freezes back into solid ice.
Example:
Ice skating works because the high pressure of the thin blade melts a slippery layer of water, which refreezes instantly after the skater passes.
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