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Due-Software-5357 t1_iv0prsv wrote

Temperature and pressure can introduce new states of matter... Water will freeze at a temperature exceeding 3000 deg when at 18000 atmospheres. Freeze in that no movement occurs in the molecules....but it is obviously not cold. It way be that a similar occurrence of freezing accounts for what we measure as solid in the core.

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Coomb t1_iv3irkn wrote

It is definitely not the case that in a solid at temperature greater than absolute zero, the constituent particles of the solid are not moving. In fact, at 3,000K they would be moving quite quickly relative to liquid water at room temperature. It's just that the restoring force from the pressure would be adequate to confine them to their places in the lattice.

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Due-Software-5357 t1_iv6qkc6 wrote

I should have started that there is no movement between the molecules (in a frozen state). Your statement is more concise.

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Diligent_Percentage8 t1_iv1b6lc wrote

That’s something interesting I’ve never really thought about. A good example though as the polar is water will boil off in space with much lower temperatures, similar to how a pressure cooker reduces waters boiling point.

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blackbat24 t1_iv30r6f wrote

Incorrect, a pressure cooker increases the boiling point, allowing the water to reach higher temperatures, and thus cook food more quickly.

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Diligent_Percentage8 t1_ixcxb2f wrote

Thank you, you are correct. Was up very late and writing absentmindedly. With your correct though, it still backs up above posters point.

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