CBSE Class 11-science Answered
What volume of oxygen at S.T.P is required to effect complete combustion of 200 cubic centemeter of acetylene and what would be the volume of carbon dioxide formed?
Asked by Manoj | 08 Jul, 2013, 08:53: PM
Expert Answer
2C2H2 + 5O2 ? 4CO2 + 2H20
2vol 5vol 4vol 2vol
2vol of C2H2 uses 5vol of O2 for combustion
Therefore, 200cm3 of C2H2 = 5 x 200/ 2
= 500cm3
By Gay Lussac's law 2vol of C2H2 = 4vol of CO2
Thus, 200cm3 of C2H2 = 4 x 200/2
= 400cm3 of CO2 at STP
Answered by | 10 Jul, 2013, 01:40: AM
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