A flat plug 30 mm thick having an area of 6×10-3 m2 is used to close an opening in a container. The gas O2 at 25 oC and 2 atm pressure is stored inside the container. Assume that the outside partial pressure of O2 is zero and the solubility of O2 is 0.9 m3 gas (at 0 oC and 1 atm) per m3 solid per atm pressure of O2 , and the diffusivity of O2 in the solid material is equal to 0.11×10-10 m2/s. i- Calculate the total leakage of O2 through the plug to the outside in kgmol/s at a steady state. ii- Using the information given in the Appendix (Table Q1), determine the most appropriate material to be used for constructing the plug; and state why?.
A flat plug 30 mm thick having an area of 6×10-3 m2 is used to close an opening in a container. The gas O2 at 25 oC and 2 atm pressure is stored inside the container. Assume that the outside partial pressure of O2 is zero and the solubility of O2 is 0.9 m3 gas (at 0 oC and 1 atm) per m3 solid per atm pressure of O2 , and the diffusivity of O2 in the solid material is equal to 0.11×10-10 m2/s. i- Calculate the total leakage of O2 through the plug to the outside in kgmol/s at a steady state. ii- Using the information given in the Appendix (Table Q1), determine the most appropriate material to be used for constructing the plug; and state why?.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A flat plug 30 mm thick having an area of 6×10-3 m2 is used to close an opening in a container. The gas O2 at 25 oC and 2 atm pressure is stored inside the container. Assume that the outside partial pressure of O2 is zero and the solubility of O2 is 0.9 m3 gas (at 0 oC and 1 atm) per m3 solid per atm pressure of O2 , and the diffusivity of O2 in the solid material is equal to 0.11×10-10 m2/s.
i- Calculate the total leakage of O2 through the plug to the outside in kgmol/s at a steady state.
ii- Using the information given in the Appendix (Table Q1), determine the most appropriate material to be used for constructing the plug; and state why?.
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