What affects the rate of evaporation in a material?

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The rate of evaporation in hygroscopic materials is influenced by several factors, including surface area, humidity levels, and material composition. A larger surface area can enhance evaporation rates in both humid and dry conditions. Engineering materials to absorb moisture in high humidity and dry quickly in lower humidity is a potential area of research. Specific material properties and environmental conditions play critical roles in this process. Understanding these factors can lead to the development of more effective hygroscopic materials.
Cibek
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Hello!

I've been researching hygroscopic materials and evaporation rate a bit lately, and a question has struck me which I haven't found an answer to yet: What material factors affect the rate of evaporation? Is it possible to engineer a material which is hygroscopic (absorbs water) in humid air, but dries really quickly once the air humidity is lowered?
 
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In general, a large surface area speeds up both directions. No idea about specific materials.
 

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