100 cc each of water gas and oxygen are ignited and resultant mixture of gases are cooled to room temperature. Calculate the composition of the resultant mixture.

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Solution

Step 1:
Its CO₂ and H₂O which is obtained by heating 100cc of water gas with oxygen.
CO + H₂ + O₂ $⟶$ CO₂ + H₂O
Given that,
Volume of water gas = 100 cc
Volume of oxygen = 100 cc
We have Volume of water gas = volume of CO + Volume of $H_{2}$ = 100 cc
Step 2:
The composition of resultant mixture after the reaction is as-
Amount of CO = Amount present - Amount used
Amount of CO = 50 - 50
Amount of CO = 0
Amount of Hydrogen = 0
Amount of water = Negligible
Amount of Carbon dioxide = 50
Amount of Oxygen = 100 - 50
Amount of Oxygen = 50

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