Question

A mixture of oxygen and ethyne is brunt for welding can you tell why a mixture of ethyne and air is not used

Answer 1

Answer:

Because ethyne is an unsaturated hydrocarbon and need high amount of oxygen to burn completely which cannot be fulfill by air so directly oxygen is used

Answer 2

Answer:

• A mixture of oxygen and ethyne is burnt for welding instead of mixture of ethyne and air because the production of heat is very important for welding metals.
• When oxygen and ethyne are burnt, it burns completely and produces a higher temperature than air and ethyne.
• Oxygen and ethyne produce very hot blue flame but the mixture of air and ethyne gives out a sooty flame which means that there are unburnt particles resulting in lesser heat.