Maurice Tutor

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About Maurice Tutor

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 408 Weeks Ago, 1 Day Ago
Questions Answered: 66690
Tutorials Posted: 66688

Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

Experience

  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 05 Jan 2018 My Price 7.00

rubber membrane

14.22    Oxygen gas is maintained at pressures of 2 bars and 1 bar on opposite sides of a rubber membrane that is

0.5 mm thick, and the entire system is at 25°C.  What is the molar diffusive flux of O2 through the mem- brane? What are the molar concentrations of O2 on both sides of the membrane (outside the rubber)?

14.23    Insulation degrades (experiences an increase in thermal conductivity) if it is subjected to water vapor condensa- tion. The problem may occur in home insulation during cold periods, when vapor in a humidified room diffuses through the drywall (plaster board) and condenses in the adjoining insulation. Estimate the mass diffusion rate for a 3 m X 5 m wall, under conditions for which the vapor pressure is 0.03 bar in the room air and 0.0 bar in the insulation. The drywall is 10 mm thick, and the solubility of water vapor in the wall material is

approximately 5 X 10-3  kmol/m3 · bar. The binary dif-

fusion  coefficient  for  water  vapor  in  the  drywall  is approximately 10-9  m2/s.

 

Answers

Maurice Tutor
(5)
Status NEW Posted 05 Jan 2018 12:01 PM My Price 7.00

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