CBSE Class 11-science Answered
Air contains 20% oxygen by volume how much volume of air will be required for combustion of 100 cc acetylene
Why we use at last as 100/20*250
Asked by gchoudhary2697 | 04 Aug, 2019, 09:55: AM
Expert Answer
2C2H2 + 5O2 → 4CO2 + 2H2O
2 moles of C2H2 react with 5 moles of O2
1 mole of C2H2 = 22.44 cc
100 cc of C2H2
2 moles of C2H2 react with 5 moles of O2
4.346 mole of C2H2 will react with
= 11.16×22.4
= 250 cc of O2
Since air contains 20% of oxygen by volume, the amount of air needed to react with 100 cc of C2H2
Answered by Varsha | 04 Aug, 2019, 05:52: PM
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