Timeline for Can a fan cause a liquid to cool below room temperature?
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4 events
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| Jun 5, 2020 at 18:40 | comment | added | ChemEng | @rghome Typically with chemical reactions we use something called the rate equation that relates the reaction rate (moles/sec) to the concentration of the reactants. In this case this will not suffice as the concentration of water is constant and it is dependent on things like surface area, perhaps an opposed reaction rate equation can be used where both the forward and reverse reactions are considered thus we do not neglect the water in air concentration | |
| Jun 5, 2020 at 18:39 | comment | added | ChemEng | @rghome please see this link for more information on reaction kinetics en.wikipedia.org/wiki/Chemical_kinetics. At equilibrium the forward and reverse reactions are happening at the same rate so there is no net condensation or evaporation | |
| Jun 5, 2020 at 7:49 | comment | added | rghome | I am curious, but does the humidity prevent actual evaporation, or does it just mean that an equilibrium is reached between escaping and returning molecules? In the second case, if the liquid escaping is at a higher temperature than that returning, could cooling not still occur, even with no net evaporation? | |
| Jun 1, 2020 at 3:15 | history | answered | ChemEng | CC BY-SA 4.0 |