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1. Time to evaporate a spherical drop. A drop of liquid (species A ) is kept suspended in a very large volume of air at

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1. Time to evaporate a spherical drop. A drop of liquid (species A ) is kept suspended in a very large volume of air at temperature T and pressure P. The initial radius of the drop is r1, its mole fraction at the surface is xA1, and its mole fraction far away is xA2. Derive the following equation for tF, the time for the drop to evaporate completely: tF=2MADABPln((1xA2)/(1xA1))Ar12RT Clearly state any assumptions you make. Show all steps

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