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The black deposit produced represents soot particles, heated to incandescence. It comes about when the combustion of air is insufficient.
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoThe glow of the luminous flame is due to incandescent carbon particles. When these particles leave the flame, they cool and become black soot.
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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
The bottom of a test tube was covered with soot after an experiment which required heating. What kind of flame was used during the experiment?
A luminous flame
What happens to a evaporatind dish when placed over a luminous flame?
it doesnt change its color
Which flame is more economical why?
My answer is luminous flame because it is used commonly here in our country Philippines but it is never be used for heating because it deposits too much soot. But it is easier to see, less hot and safer.
What is the chemical substance does the block soot consist off?
If you think to black soot this is formed from tiny carbon particles.
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).
What flame produce more soot and smoke?
the yellow flame
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 it advisable to turn a luminous flame to a non luminous flame when the flame is not in use?
prevents soot generation
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 does luminous flame exist?
because of the yellow flame, yellow is a bright coulor........... Scientific term......... The collar is closed to get luminous flame and collar open to get non- luminous flame....
Is non luminous flame steady or unsteady?
Non-luminous flame should be used for heating in the because the flame is steady and produce little or no soot. Non-luminous flame is very hot thus, it is recommen- dable to use for laboratory purposes. Luminous flame is unsteady while non-lumi- nous 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.
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 flame is not suitable for heating in Bunsen burner?
The yellow flame (or luminous flame) should not be used because 1. It is less hot that the blue flame (or non-luminous flame) 2. It produces soot, as compared to the blue flame which is the clean flame
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.
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.
