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Question

8 gm of methane is burnt with 4.48L of O2 at STP. Find out the volume of CO2 gas produced at STP?

A
2.24 L
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B
44.8 L
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C
11.2 L
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D
33.6 L
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Solution

The correct option is A 2.24 L
Methane combustion reaction can be written as:

CH4+2O2CO2+2H2O

moles of O2 gas=4.4822.4=0.2 moles

2 moles of O2 produces 1 mole of CO2

0.2 moles of O2 produces 0.1 mole of CO2

Volume of CO2 produced=0.1×22.4=2.24 litres


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