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MMLU-Pro / 11364 / A turbine takes in air at 825K, 690kPaand expands it to 138 kPaand 585K.…

Problem

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

question

A turbine takes in air at 825K, 690kPaand expands it to 138 kPaand 585K. Assuming air to be an ideal gas, calculate a) the available energy of the air taken in, b) the loss of available energy in the turbine, and c) T_0, the isentropic exit temperature, or, the lowest available temperature.

category

engineering

options

  1. 290.5 kJ/kg, -75.4 kJ/kg, 515.9K
  2. 315.5 kJ/kg, -55.4 kJ/kg, 510.9K
  3. 295.5 kJ/kg, -60.4 kJ/kg, 500.9K
  4. 280.5 kJ/kg, -65.4 kJ/kg, 540.9K
  5. 300.5 kJ/kg, -70.4 kJ/kg, 525.9K
  6. 250.5 kJ/kg, -65.4 kJ/kg, 530.9K
  7. 305.5 kJ/kg, -60.4 kJ/kg, 520.9K
  8. 310.5 kJ/kg, -80.4 kJ/kg, 505.9K
  9. 275.5 kJ/kg, -55.4 kJ/kg, 545.9K
  10. 320.5 kJ/kg, -50.4 kJ/kg, 535.9K

src

stemez-Thermodynamics

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Source and history

upstream_id / Original problem ID
11364
task_id
64dea48a-559f-5390-a937-e24a65a74116
task_key
default--test--11364
task_revision_id
1
config / split
default / test

Official source

initial import