What volume of carbon dioxide is produced at STP when 5 litres of propane is burnt completely according to the equation given below?
[ C_3H_8 + 5O_2 3CO_2 + 4H_2O ]
[ C_3H_8 + 5O_2 3CO_2 + 4H_2O ]
Show Hint
- 10 litres
- 15 litres
- 20 litres
- 25 litres
The Correct Option is B
Solution and Explanation
According to Gay-Lussac's Law of Combining Volumes, gases react in a simple whole-number ratio by volume, provided temperature and pressure remain constant.
Step 2: Analyzing the Stoichiometry:
From the balanced equation: [ underbrace1 text vol._C_3H_8 + 5 text vol. O_2 underbrace3 text vol._CO_2 + 4 text vol. H_2O ] This means 1 litre of propane produces 3 litres of carbon dioxide.
Step 3: Calculating for 5 Litres:
Volume of CO_2 = 5 text litres (propane) times 3 = 15 text litres.
Step 4: Final Answer:
The volume of CO_2 produced is 15 litres.
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