Calculate the pressure of a barometer on...

Calculate the pressure of a barometer on an aeroplane which is at an altitude of 10 Km. Assume the pressure to be 101.325Kpa at sea level & the mean temperature 243K. Use the average molar mass of air ( 80% `N_(2), 20% O_(2)`)

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The correct Answer is:

`25.027Kpa`

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