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Author Question: One liter of liquid oxygen is equivalent to _____ liters of gaseous oxygen. a. 2.5 c. 348 b. 328 ... (Read 79 times)

leilurhhh

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on: Jul 16, 2018
One liter of liquid oxygen is equivalent to _____ liters of gaseous oxygen.
 
  a. 2.5 c. 348
  b. 328 d. 860

Question 2

Which is true about the process of fractional distillation of liquid air?
 
  a. Compressed air is a by-product.
  b. It produces pure liquid oxygen.
  c. Liquid nitrous oxide is produced.
  d. Concentrators use it to produce oxygen.


mochi09

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

ANS: D
Oxygen expands to 860 times its liquid volume at 25 C and 1 atm; therefore, the total volume of gaseous oxygen available can be calculated by multiplying the number of liters of liquid oxygen by 860.

Answer to Question 2

ANS: B
The fractional distillation of liquid air creates pure liquid oxygen. There are no by-products from this method. Oxygen concentrators take in room air and separate oxygen from nitrogen.


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