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MMLU-Pro / 11869 / Steel, with an initial carbon concentration of 0.30% by weight, is placed in a…

Problem

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question

Steel, with an initial carbon concentration of 0.30% by weight, is placed in a carburizing atmosphere for 1.5 hr. The surfaceconcentration of carbon,c_A,s, is 0.75%. The diffusivityof carbon in steel is 1.1 × 10^-11 m^2/sec at the existentconditions of pressure and temperature. Obtain the concentrationof carbon at 0.015, 0.025, and 0.045 cm under thesurface of the steel.

category

engineering

options

  1. 0.58% carbon, 0.49% carbon, 0.37% carbon
  2. 0.55% carbon, 0.45% carbon, 0.35% carbon
  3. 0.60% carbon, 0.51% carbon, 0.39% carbon
  4. 0.57% carbon, 0.47% carbon, 0.36% carbon
  5. 0.61% carbon, 0.52% carbon, 0.40% carbon
  6. 0.65% carbon, 0.56% carbon, 0.44% carbon
  7. 0.63% carbon, 0.54% carbon, 0.42% carbon
  8. 0.59% carbon, 0.50% carbon, 0.38% carbon
  9. 0.62% carbon, 0.53% carbon, 0.41% carbon
  10. 0.64% carbon, 0.55% carbon, 0.43% carbon

src

stemez-TransportPhenomena

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Source and history

upstream_id / Original problem ID
11869
task_id
047d3560-9f57-5295-a338-20062f8ddf37
task_key
default--test--11869
task_revision_id
1
config / split
default / test

Official source

initial import