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MMLU-Pro / 12137 / Water enters a reactor through a length of pipe in which the necessarypreheating…

Problem

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

question

Water enters a reactor through a length of pipe in which the necessarypreheating is accomplished. The reactor has a maximumpower rating of 150 W per meter of pipe, and its operatingtemperature is 350°K. The flow is measured at 5 kg/hr, and it enters the pipe at a mean bulk temperature of 290°K.If the internal diameter of the pipe is 0.005 m, calculate (a)thelength of pipe over which the necessary heat transfer maybe accomplished, and (b)themaximum exit temperature of the water.

category

engineering

options

  1. (a) 2 m, (b) 375 K
  2. (a) 2.8 m, (b) 355 K
  3. (a) 3 m, (b) 370 K
  4. (a) 1.5 m, (b) 375 K
  5. (a) 1.8 m, (b) 360 K
  6. (a) 3.5 m, (b) 372 K
  7. (a) 2.5 m, (b) 360 K
  8. (a) 1.2 m, (b) 365 K
  9. (a) 4 m, (b) 380 K
  10. (a) 2.32 m, (b) 367.07 K

src

stemez-Thermodynamics

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Source and history

upstream_id / Original problem ID
12137
task_id
e8dde239-781b-562c-a1f9-43c659650c61
task_key
default--test--12137
task_revision_id
1
config / split
default / test

Official source

initial import