Why Does Iodine, (S), Spontaneously Sublime at Room Temperature

question 118

Multiple Choice

Why does iodine, (s) , spontaneously sublime at room temperature?

• A)The contact of iodine, (s), with the water vapor in the air causes the sublimation process.
• B)Iodine, (s), pulls from the air as it self-oxidizes under sublimation to (g).
• C)There is an increase in entropy as solid iodine, (s), sublimes into iodine vapor, (g), because in the gaseous phase energy is more readily dispersed.
• D)The reaction of (s)subliming to (g)is highly exothermic and therefore proceeds spontaneously.

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