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Why must the methane gas be mixed with the air in the barrel before it is burned?

Mixing air with the gas before combustion ensures that enough oxygen will be available and complete combustion will occur.

What is the purpose of the barrel air holes?

Observe the air holes at the bottom of the hollow barrel. They allow the delivery of air (oxygen) into the barrel. The gas from the spigot and the air delivered into the barrel from the air holes are mixed inside the barrel prior to being burned.

What is the function of barrel in Bunsen burner?

The barrel on a Bunsen burner is the metal tube that is screwed onto the burner’s base. It contains the air intake openings that let air into the burner when uncovered and stop the entry of air when shut.

What happened when the match was pushed toward the edge of the barrel and why did it happen?

What happened when the match was pushed toward the edge of the barrel and why? The match head suspended and lit into flames.

How do you control the height of the flame?

Adjusting the Flame. Use the needle valve to control the flame’s size. The needle valve on the bottom of the Bunsen burner adjusts the gas flow rate, which determines the height of the flame. More gas will create a larger flame, and less gas gives you a smaller flame.

Is a blue flame safe on a gas fire?

A blue flame indicates safe and efficient combustion, meaning that the gas is being burned efficiently and not being wasted. Blue flames are hotter and indicate more complete combustion. Whether it is your gas stove, gas furnace, or any other gas appliance, you always want a blue flame.

What is the color of the flame when air holes are closed?

yellow

Does a blue flame mean carbon monoxide?

Carbon Monoxide A blue flame is one indication of proper function and complete combustion. As discussed, malfunctioning units may generate carbon monoxide, due to incomplete combustion.