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Author Question: Which of the following have the fastest diffusion rate through the semipermeable membrane of an ... (Read 91 times)

sjones

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on: Jul 16, 2018
Which of the following have the fastest diffusion rate through the semipermeable membrane of an oxygen concentrator? 1. Carbon dioxide 2. Water vapor 3. Nitrogen 4. Oxygen
 
  a. 1 and 2 c. 3 and 4
  b. 1 and 3 d. 2 and 4

Question 2

Bulk oxygen is produced through which of the following?
 
  a. Molecular sieves c. Semipermeable membranes
  b. Fractional distilla-tion d. Combustion of nat-ural gas


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spencer.martell

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
Oxygen concentrators are devices that produce enriched oxygen from atmospheric air. Thus, ox-ygen and water vapor diffuse through these membranes faster than nitrogen.

Answer to Question 2

ANS: B
Fractional distillation generates bulk oxygen. Molecular sieves and semipermeable membranes are used in oxygen concentrators. The combustion of natural gas produces carbon dioxide.


sjones

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Reply 2 on: Jul 16, 2018
Gracias!

frankwu0507

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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