Solids, Liquids, and Gases

AP Chemistry· difficulty 2/5

Sublimation is the direct phase change from

A
$Liquid to solid$
B
$Liquid to gas$
C
$Gas to liquid$
D
$Solid to gas (skipping liquid)$
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Explanation

Solid CO₂ (dry ice) sublimes at room T because it lies below its triple point at 1 atm. Iodine and naphthalene also sublime at ambient pressure.

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