Interpretation: It should be explained that when the lid of a food container that has been frozen for a while is removed, a sizable accumulation of ice crystals is found on the bottom of the lid.
Concept introduction:
Without going through the liquid state, sublimation is the process by which a substance moves straight from the solid to the gas state.
Answer to Problem 53A
On the lid, the water on the meal is sublime and condensed.
Explanation of Solution
Foods from the freezer are likely freezer burnt if they appear tough, shriveled, spottily discolored, or covered in ice crystals. Moisture loss is the cause of freezer burn. Any food that has been frozen for a long time is vulnerable. All foods include water, which when frozen produces thousands of ice crystals. Through a process known as sublimation, these crystals move to the surface of the food and eventually the bottom of the lid.
Chapter 13 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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