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MMLU-Pro / 11437 / A 0.1 m diameter, 0.1 m high solid copper cylinder is initially at 180°C. It is…

Problem

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

question

A 0.1 m diameter, 0.1 m high solid copper cylinder is initially at 180°C. It is then placed in a room and is allowed to cool to a final temperature of 30°C. Assuming copper to have a density of 8954 kJ/kg - °K, calculate the heat transfer and the irreversibility of the process if the temperature of the surroundings (T_0) is 25°C.

category

engineering

options

  1. Heat Transfer: - 421.74 kJ, Irreversibility: 84.79 kJ
  2. Heat Transfer: - 440 kJ, Irreversibility: 88 kJ
  3. Heat Transfer: - 480 kJ, Irreversibility: 96 kJ
  4. Heat Transfer: - 400 kJ, Irreversibility: 85 kJ
  5. Heat Transfer: - 390 kJ, Irreversibility: 78 kJ
  6. Heat Transfer: - 350 kJ, Irreversibility: 70 kJ
  7. Heat Transfer: - 500 kJ, Irreversibility: 80 kJ
  8. Heat Transfer: - 375 kJ, Irreversibility: 75 kJ
  9. Heat Transfer: - 450 kJ, Irreversibility: 90 kJ
  10. Heat Transfer: - 410 kJ, Irreversibility: 82 kJ

src

stemez-Thermodynamics

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Source and history

upstream_id / Original problem ID
11437
task_id
a5f108b2-4b98-5609-9410-bdc7b0f8ae12
task_key
default--test--11437
task_revision_id
1
config / split
default / test

Official source

initial import