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MMLU-Pro / 12249 / A solid sphere of naphthalene (A) with a radius of 2.5 mm is surroundedby still…

Problem

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

question

A solid sphere of naphthalene (A) with a radius of 2.5 mm is surroundedby still air (B) at 300 K and 1 atm. Take the surfacetemperature of the naphthalene as 300°K and its vaporpressure at this temperature as 0.104 mm Hg. The diffusivityofnapthalenein air at 318°K is 6.92 × 10^-6 m^2 / sec.Determinethe rate at which naphthaleneevaporates.

category

engineering

options

  1. 2.22 × 10^-8kgmol/ m^2-sec
  2. 1.67 × 10^-8 kgmol/ m^2-sec
  3. 1.75 × 10^-8 kgmol/ m^2-sec
  4. 1.41 × 10^-8kgmol/ m^2-sec
  5. 1.02 × 10^-8 kgmol/ m^2-sec
  6. 1.89 × 10^-8kgmol/ m^2-sec
  7. 2.58 × 10^-8 kgmol/ m^2-sec
  8. 3.33 × 10^-8 kgmol/ m^2-sec
  9. 0.98 × 10^-8kgmol/ m^2-sec
  10. 3.05 × 10^-8 kgmol/ m^2-sec

src

stemez-TransportPhenomena

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Source and history

upstream_id / Original problem ID
12249
task_id
f281c480-c290-5d72-9864-77db2d6e7a9c
task_key
default--test--12249
task_revision_id
1
config / split
default / test

Official source

initial import