Question

`KO_(2)` is used in oxygen cylinders in space and submarines because it
A. produces ozone
B. absorbs `CO_(2)`
C. eliminates moisture
D. absorbs `CO_(2)` and increase `O_(2)` content

Answer 1

Correct Answer - D
`KO_(2)` is used in space capsules, submarines, and breathing masks because it both produces oxygen and removes carbon dioxide. Both function are important in life support systems:
`4KO_(2)+2CO_(2)rarr2K_(2)CO_(3)+3O_(2)`
`4KO_(2)+4CO_(2)+2H_(2)Orarr4KHCO_(3)+3O_(2)`