Mixture of 20 cm3 methane and hydrogen burn with 100 cm3 of oxygen. Give the composition of the reaction mixture after combustion at room temperature?
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11th
Chemistry
Some Basic Concepts of Chemistry
Stoichiometry and Stoichiometric Calculations
CH4 + 2O2→ CO2 + 2H2O
CHEMISTRY
CH
4
+2O
2
→CO
2
+2H
2
O
As per this reaction, if 20 ml of CH
4
and 20 ml of O
2
were exploded together and if the reaction mixture is cooled to room temp, the resulting gas mixture will have a volume of:
December 30, 2019avatar
Sahith Umesh
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ANSWER
The reaction is CH
4
+2O
2
→CO
2
+2H
2
O.
At room temperature, water will condense to form liquid water.
1 mole of methane reacts with 2 moles of oxygen to form 1 mole of oxygen.
10 ml (0.445 moles) of methane will react with 20 ml (0.89 moles) of oxygen to form 10 ml (0.445 moles) of carbon dioxide.
Hence, the resulting mixture will contain 10 ml of unreacted methane and 10 ml of carbon dioxide.
The total volume of the mixture will be 20 ml.
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20 ml