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MMLU-Pro / 12054 / A nozzle has air flowing through it at a rate of 0.25 lb/sec. The inlet…

Problem

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

question

A nozzle has air flowing through it at a rate of 0.25 lb/sec. The inlet conditions are; P_i = 35 psia, T_i = 650°R and specific volume = 6.0 ft^3/lb. The air enters with a velocity of 550 fps and leaves with a pressure of 18 psia. Compute the nozzle outlet cross-sectional area. Assume that the air expands inside the nozzle frictionlessly according to the relation pv^1.4 = constant and that the change in elevation between inlet and outlet is negligible.

category

engineering

options

  1. 0.0019 ft^2
  2. 0.0025 ft^2
  3. 0.0009 ft^2
  4. 0.0012 ft^2
  5. 0.0030 ft^2
  6. 0.0017 ft^2
  7. 0.0020 ft^2
  8. 0.0028 ft^2
  9. 0.0015 ft^2
  10. 0.0022 ft^2

src

stemez-Thermodynamics

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Source and history

upstream_id / Original problem ID
12054
task_id
f160f270-e0af-5e3e-ad10-f57baca631fe
task_key
default--test--12054
task_revision_id
1
config / split
default / test

Official source

initial import