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The black deposit produced represents soot particles, heated to incandescence. It comes about when the combustion of air is insufficient.

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Why is it bad 2 heat things with a luminous flame?

Heating things with a luminous flame can produce soot, which is a black carbon-based substance that can contaminate the item being heated. In addition, soot can also pose health risks if inhaled. It is better to use a clean, non-luminous flame for heating to avoid these issues.


Why is non luminous blue flame preferred over the luminous yellow flame in the laboratory?

blue flame is more important for laboratory procedures since it's also known as the reducing zone of the flame in which the tip of the blue flame has the highest temperature. and thank you , a Dental student ;D


Which is better for cooking luminous or non-lominous flame?

For cooking, a non-luminous flame is generally better than a luminous flame. A non-luminous flame produces higher temperatures and more efficient combustion, resulting in faster and more even cooking. Luminous flames, on the other hand, are typically cooler and can leave soot on cookware, which may affect the taste and appearance of the food.


Which bunsen burner luminous or non luminous flame used in laboratory and why?

A non-luminous flame is typically used in laboratory settings when using a Bunsen burner. This flame produces a more controlled and homogeneous heat source, making it ideal for processes like heating, sterilizing, and combustion analysis. The non-luminous flame also produces less soot and is more energy efficient compared to a luminous flame.


What happens to a evaporatind dish when placed over a luminous flame?

it doesnt change its color

Related Questions

Why is a luminous flame formed when the air hole is closed?

The luminous flame is present when the air valve is closed because of an incomplete combustion process and the burning of trapped carbon (soot).


Why is it bad 2 heat things with a luminous flame?

Heating things with a luminous flame can produce soot, which is a black carbon-based substance that can contaminate the item being heated. In addition, soot can also pose health risks if inhaled. It is better to use a clean, non-luminous flame for heating to avoid these issues.


Why is it advisable to turn a luminous flame to a non luminous flame when the flame is not in use?

Turning a luminous flame to a non-luminous flame when not in use conserves fuel because non-luminous flames burn more efficiently. A non-luminous flame produces less soot and smoke, making it safer and better for indoor air quality.


Is the temperature of a luminous flame greater ot less than that of a nonluminous flame?

The yellow color in a luminous flame is basically the black-body emission from hot particles of soot in the flame. they are hot, and they glow like the filament of a light bulb. In a blue flame, there are no particles of soot to give that incandescent radiation. Instead, the main color you see is blue emission from the high-energy C2 molecule.


Which type of flame should use in laboratory luminous or non luminous?

Non- luminous flame should be used as it is steady and produces little or no soot.


How the flame produced when the air holes were closed. if the the flame was luminous what made it so?

When air holes are closed, oxygen supply decreases, leading to incomplete combustion and the production of soot particles. These soot particles can get heated up to incandescence and emit visible light, creating a luminous flame. The presence of carbon in the soot is what causes the flame to appear luminous.


Is sooty flame a luminous or non luminous?

A sooty flame is typically considered a non-luminous flame because it does not produce significant visible light. It appears dark or dim due to the presence of unburned carbon particles (soot) in the flame.


Why a luminous flame is not used as a source of heat in a laboratory experiment?

A luminous flame produces soot, which can contaminate the experiment or react with chemicals being used. In addition, the temperature of a luminous flame is not as high or consistent as a non-luminous flame, making it less suitable for precise heating applications in a laboratory setting.


What is the difference between luminous and non luminous?

-A non-luminous flame is when the air hole of the Bunsen burner is closed but a luminous flame is produced when the air hole is opened.-A luminous flame has an outer of orange colour and an inner of blue. A non-luminous flame has an outer of blue and an inner of orange.-A luminous flame produces soot while a non-luminous does not produce soot.-A luminous flame is weak and unsteady. A non-luminous flame is strong and steady.-A non-luminous flame is very hot while a luminous flame is not too hot.


Why is non luminous blue flame preferred over the luminous yellow flame in the laboratory?

blue flame is more important for laboratory procedures since it's also known as the reducing zone of the flame in which the tip of the blue flame has the highest temperature. and thank you , a Dental student ;D


Should a luminous or non luminous Bunsen flame be used for heating in the laboratory and why?

Non-luminous flame should be used for heating in the laboratory because the flame is steady and produce little or no soot.Non-luminous flame is very hot thus, it is recommendable to use for laboratory purposes.Luminous flame is unsteady while non-luminous flame is steady.Another reason of using non-luminous flame because the flame of non-luminous is blue, and not visible unlike the luminous flame which is yellow in colour and visible.


How did soot exists in the luminous flame?

Soot appears when there is an incomplete combustion of carbon. In fact, soot is just carbon but floated up as it becomes less dense.