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MMLU-Pro / 12242 / A spherical shell of cast iron having an inside radius 2.5 in. and outside…

Problem

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

question

A spherical shell of cast iron having an inside radius 2.5 in. and outside radius 6 in., contains a solution which liberates heat at the rate of 0.8 × 10^5 Btu/hr. The outside surface of the shell is held at 120°F. Assuming that the steady state conditions prevail and that the thermal conductivity of the cast iron 45 Btu/hr-ft-°F remains constant, determine the temperature distribution in the shell. Find the temperature at r = 5 in.

category

engineering

options

  1. 176°F
  2. 172°F
  3. 160°F
  4. 185°F
  5. 150°F
  6. 158°F
  7. 180°F
  8. 190°F
  9. 165°F
  10. 170°F

src

stemez-TransportPhenomena

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Source and history

upstream_id / Original problem ID
12242
task_id
b92f4d92-2b63-51a7-9796-994ea73820cb
task_key
default--test--12242
task_revision_id
1
config / split
default / test

Official source

initial import