Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 06 Jan 2018 My Price 7.00

tube of diameter

14.20    Consider the interface between atmospheric air and a body of water, both at 17°C.

(a)    What are the mole and mass fractions of water at the air side of the interface? At the water side of the interface?

(b)   What are the mole and mass fractions of oxygen at the air side of the interface? At the water side of the interface? The atmospheric air may be assumed to contain 20.5% oxygen by volume.

14.21    Hydrogen at a pressure of 2 atm flows within a tube of diameter 40 mm and wall thickness 0.5 mm. The outer surface is exposed to a gas stream for which the hydro- gen partial pressure is 0.1 atm. The mass diffusivity and solubility of hydrogen in the tube material are

1.8 X 10-11  m2/s  and  160 kmol/m3 · atm,  respectively.

When the system is at 500 K, what is the rate of hydro- gen transfer through the tube per unit length (kg/s · m)?

Answers

Maurice Tutor
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Status NEW Posted 06 Jan 2018 04:01 PM My Price 7.00

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