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Homework Statement
How can ice sublimate at atmospheric pressure? Looking at the p-T diagram for water, the sublimation curve does not extend above a tiny fraction of atmospheric (triple point of water, p = 4.58mm Hg). Yet my ice box tells a different story.
Homework Equations
p-T diagram for water, available at your local friendly hydrology book store (?).
The Attempt at a Solution
I have no clue.