How many liters of oxygen would be needed to produce 45.0 liters of carbon dioxide if the temperature and pressure for both are 22.0° C and 75.0 psi?

1 Answer
Feb 23, 2016

Answer:

A precise volume of #45# #L#.

Explanation:

At constant pressure, and constant temperature, equal volumes of gases contain an equal number of molecules; this is Avogadro's law of combining volumes.

Given that reaction has #1:1# stoichiometry, i.e.

#C(s) + O_2(g) rarr CO_2(g)#

If #45# #L# of oxygen were used, stoichiometry insists that #45# #L# of carbon dioxide were produced. This is a good thing, because using mixed units in questions like this (i.e. #"litres"# and #"pounds per square inch"#) is simply asking for trouble.