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MMLU-Pro / 11494 / A cylindrical vessel of diameter 7.0 ft is filled to 2.5 ft below theopen top…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A cylindrical vessel of diameter 7.0 ft is filled to 2.5 ft below theopen top with pure n-butanol. Inside the tank, the air is stationary, but currents above it maintain a small enough concentrationof n-butanolthere to allow it to be neglected. The system is at 77.0°C and 1 atm. The diffusivity of n-butanolin air at these conditions is 0.438 ft^2 / hr. Determine the rate ofevaporizationof n-butanolfrom the vesselat steady state conditions.

category

engineering

options

  1. 0.508 × 10^-3 lb moles/hr
  2. 2.08 × 10^-3 lb moles/hr
  3. 1.58 × 10^-3 lb moles/hr
  4. 6.08 × 10^-3 lb moles/hr
  5. 2.58 × 10^-3 lb moles/hr
  6. 4.08 × 10^-3 lb moles/hr
  7. 1.08 × 10^-3 lb moles/hr
  8. 5.08 × 10^-3 lb moles/hr
  9. 7.08 × 10^-3 lb moles/hr
  10. 3.08 × 10^-3 lb moles/hr

src

stemez-TransportPhenomena

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