The drawing shows a container that is partially filled with 2 0 grams of water The temperature is maintained at a constant 20 deg C The space above the liquid contains air that is completely saturated with water vapor A tube of length 0 15 m and cross sectional area 3 0 Atilde 10 4 m2 connects the water vapor at one end to air that remains completely dry at the other end The diffusion constant for water vapor in air is 2 4 Atilde 10 5 m2 s How long does it take for the water in the container to evaporate completely 0 15 m Dry air Water vapor Liquid water

Question: The drawing shows a container that is partially filled with 2.0 grams of water. The temperature is maintained at a constant 20 °C. The space

The drawing shows a container that is partially filled with 2.0 grams of water. The temperature is maintained at a constant 20 °C. The space above the liquid contains air that is completely saturated with water vapor. A tube of length 0.15 m and cross-sectional area 3.0 Ã— 10-4 m2 connects the water vapor at one end to air that remains completely dry at the other end. The diffusion constant for water vapor in air is 2.4 Ã— 10-5 m2/s. How long does it take for the water in the container to evaporate completely?

0.15 m Dry air Water..* . vapor Liquid water

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Equation 148 gives Ficks law of diffusion m DACtL Solving for the time t gives t m... View full answer

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