Question

What is sublimation..?

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Answer 1

Answer:

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Sublimation: The process in which a solid transforms into a gas phase without first melting to form a liquid phase.

• (Sublimation is not synonymous with evaporation; evaporation is a liquid-to-gas phase change.)
• Frequently happens with substances having a high vapor pressure at room temperature.
• Familiar substances that sublime readily include iodine (shown below), dry ice (shown below), menthol, and camphor.
• Sublimation is occasionally used in the laboratory as a method for purification of solids, for example, with caffeine.

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