A cylindrical vessel of diameter 7.0 ft is filled to 2.5 ft below the open top...
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A cylindrical vessel of diameter 7.0 ft is filled to 2.5 ft below the open top with pure n-butanol. Inside the tank, the air is stationary, but currents above it maintain a small enough concentration of n- butanol there to allow it to be neglected. The system is at 77.0 °C and 1 atm. The diffusivity of n-butanol in air at these conditions is 0.438 ft2/hr. Determine the rate of evaporation of n-butanol from the vessel at steady state conditions. A cylindrical vessel of diameter 7.0 ft is filled to 2.5 ft below the open top with pure n-butanol. Inside the tank, the air is stationary, but currents above it maintain a small enough concentration of n- butanol there to allow it to be neglected. The system is at 77.0 °C and 1 atm. The diffusivity of n-butanol in air at these conditions is 0.438 ft2/hr. Determine the rate of evaporation of n-butanol from the vessel at steady state conditions.
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