CBSE Class 10 Answered
Why is it so, if ethyne is burnt for welding purposes with air, instead of Oxygen, it gives incomplete combustion. Explain in detail.
Asked by | 26 Jan, 2012, 02:12: PM
Expert Answer
When ethyne is burnt in air, it gives a sooty flame. This is due to incomplete combustion caused by limited supply of air. However, if ethyne is burnt with oxygen, it gives a clean flame with temperature 3000°C because of complete combustion. This oxy-acetylene flame is used for welding. It is not possible to attain such a high temperature without mixing oxygen. This is the reason why a mixture of ethyne and air is not used.
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Answered by | 26 Jan, 2012, 09:08: PM
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