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43. Use Table 3-1 to identify a substance that undergoes a
phase change as its temperature increases from -250°C
to -210°C. What phase change takes place? (3.2)

43 Use Table 31 to identify a substance that undergoes a phase change as its temperature increases from 250C to 210C What phase change takes place 32 class=

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Answer:

Oxygen, and from solid to liquid. This is because oxygen's melting point is at -218°C. Melting point refers to the temperature where heat causes particles to vibrate with sufficient energy to break the solid structure, so for oxygen this means it's being turned into a liquid.

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