Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxy-acetylene welding is ______________ Nm3 ?
Correct answer: D. 2.5
- A. 0.5
- B. 1
- C. 1/3
- D. 2.5
Explanation
The balanced combustion reaction is C2H2 + 2.5O2 → 2CO2 + H2O. Therefore, 1 Nm3 of acetylene theoretically requires 2.5 Nm3 of oxygen.
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