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At an altitude of 11,000 m (a typical cruising altitude for a jet airliner), the air...

At an altitude of 11,000 m (a typical cruising altitude for a jet airliner), the air temperature is -52.5 ∘C and the air density is 0.356 kg/m3. The molar mass of air is 28.8 g/mol.

What is the pressure of the atmosphere at that altitude? (Note: The temperature at this altitude is not the same as at the surface of the earth, so the equation P=P0exp(−MgyRT) doesn't apply.)

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Answer #1

Sol: given M = 28.8 girl T= -52.57273.15 T= 220.65K - p=0.356 kg/m3 neue have si density as TP=PM URT >P-RTP where R = 8.3145

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