The reason a mixture of ethyne (acetylene) and air is not used for welding purposes is due to safety and efficiency reasons.

1. Safety: Air contains around 78% nitrogen, which under high temperatures can react with oxygen to form nitrogen oxides. These are toxic gases and can be harmful to the welder.

2. Efficiency: The combustion of acetylene in pure oxygen produces a flame temperature of about 3100°C, while the combustion of acetylene in air produces a flame of about 2400°C. The higher temperature produced by the combustion in pure oxygen allows for faster and more efficient welding.

Therefore, for both safety and efficiency, a mixture of oxygen and acetylene is preferred over a mixture of air and acetylene for welding.

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The reason a mixture of ethyne (acetylene) and air is not used for welding purposes is due to safety and efficiency reasons.

1. Safety: Air contains around 78% nitrogen, which under high temperatures can react with oxygen to form nitrogen oxides. These are toxic gases and can be harmful to the welder.

2. Efficiency: The combustion of acetylene in pure oxygen produces a flame temperature of about 3100°C, while the combustion of acetylene in air produces a flame of about 2400°C. The higher temperature produced by the combustion in pure oxygen allows for faster and more efficient welding.

Therefore, for both safety and efficiency, a mixture of oxygen and acetylene is preferred over a mixture of air and acetylene for welding.

Knowee AI · Accepted Answer

The reason a mixture of ethyne (acetylene) and air is not used for welding purposes is due to safety and efficiency reasons.

1. Safety: Air contains around 78% nitrogen, which under high temperatures can react with oxygen to form nitrogen oxides. These are toxic gases and can be harmful to the welder.

2. Efficiency: The combustion of acetylene in pure oxygen produces a flame temperature of about 3100°C, while the combustion of acetylene in air produces a flame of about 2400°C. The higher temperature produced by the combustion in pure oxygen allows for faster and more efficient welding.

Therefore, for both safety and efficiency, a mixture of oxygen and acetylene is preferred over a mixture of air and acetylene for welding.

A mixture of oxygen and ethyne is burnt for welding. Can you tell whya mixture of ethyne and air is not used?

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