Why and how does ice sublimate in the freezer?

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SUMMARY

Ice sublimates in the freezer due to low pressure and sufficient internal energy, occurring significantly below 1 atm. The refrigeration process involves the removal of heat through the expansion of refrigerant gases, such as freon, which cools the interior of the freezer. As gaseous water molecules sublimate, they are likely removed from the environment, facilitating further sublimation. The airtight nature of freezers minimizes air exchange, maintaining low pressure and temperature conducive to sublimation.

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  • Basic knowledge of thermodynamics, particularly the Carnot cycle.
  • Familiarity with refrigeration systems and the role of refrigerants like freon.
  • Concept of pressure and its effects on physical states of matter.
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Why and how does ice sublimate in the freezer?
 
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Ice will sublimate under significantly lower pressures than 1 atm and with sufficient internal energy; note it will take a very long time for ice to sublimate in the freezer. Not quite sure how a referigetor operates though; removes the heat someway perhaps...something to do with carnot engines. Any gaseous water molecules which do sublimate will probably be removed which will somewhat faciliate further sublimation.
 
dont refrigerators/freezers remove heat by passing a gas (free-on) through some tubes and let it expand signficantly, thus cooling it and the freezer down. arent they also air tight (or atleast there isn't a lot of air flow in and out), no air enters/leaves so as to effect the temperature inside/outside the freezer, isn't that why you can sufficate inside one.

If i had to explain ice subliming in the freezer, although I am not sure, I would venture a guess that it is because of the low temperature, low pressure air somehow, drawing up more evaporated water/ice molecures into the air. other than that, I don't know.
 

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