A Bunsen burner produces two types of flames name them
The two types of flames produced by a Bunsen burner are the yellow flame and the blue flame.
A Bunsen burner produces two types of flames: the inner blue flame and the outer yellow flame.
To determine the two types of flames produced by a Bunsen burner, we can refer to the burner's structure and operation.
1. Yellow/Non-luminous Flame: This flame is produced when the Bunsen burner is set to its "safety" or "air hole closed" position. In this configuration, the air hole on the burner is almost completely closed, resulting in limited oxygen supply. As a result, incomplete combustion occurs, and the flame appears yellow or orange due to the presence of unburned carbon particles. This flame also produces very little heat compared to the other type.
2. Blue/Luminous Flame: This flame is generated when the Bunsen burner is set to its "hot" or "air hole open" position. The air hole on the burner is fully or partially opened, allowing a sufficient supply of oxygen. With more oxygen available, the gas-air mixture undergoes complete combustion, resulting in a blue and nearly invisible flame. This blue flame is both hotter and cleaner than the yellow flame mentioned earlier.
It's important to note that the exact appearance and behavior of the flames can vary depending on factors such as the type of gas used, the amount of airflow, and adjustments made to the burner's control valve.