Air flows steadily and isentropically from standard atmospheric conditions to a receiver pipe through a converging duct. The cross-sectional area of the throat of the converging duct is 0.05 ft2. Determine the mass flowrate in lbm/s through the duct if the receiver pressure is 10 psia.

The answer is "0.0728"

Explanation:

Given value:

if flow is chocked

if flow is not chocked

When  P= 10 psia < not chocked

match number:

R= gas constant=1716

answer:

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explanation:  

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