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a non-luminous flame- when the air hole of the Bunsen Burner is open

"when the air hole is open, more oxygen can enter the burner; therefore, hotter flame will be produced."

its color is transparent or blue

Blue flames are the hottest flames

a luminous flame is produced when the air hole is closed..

"if the air hole is closed, oxygen cannot enter the burner; therefore, least hotter because the combustion is not fully complete with least oxygen

A luminous flame has an outer of orange color and an inner of blue.

Luminous flames emits more light than non-luminous flames.

three things to produce flame

1.fuel

2.oxygen

3.friction or source of spark
Luminous objects emit light. The sun is luminous; the moon is non-luminous.

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12y ago
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13y ago

hmm, the main difference... one produces *visible* light, the other does not :P

A non-luminous flame is blue in color, hardly visible, less wavy and hotter than a luminous flame. A luminous flame is not as hot, visible, orange in color, and wavy. A luminous flame is most used in experiments because it is less wavy and you have more control of it...

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12y ago

A non-luminous flame is normally used in laboratories, and is blue in color. That is because the flame is cooler, and does not produce soot. The luminous flame is way hotter, and is yellow in color. The luminous flame contains carbon dioxide, while the non-luminous flame contains oxygen.

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14y ago

The temperature of a luminous flame is less than that of a nonluminous flame.

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12y ago

Non-luminous flame is hotter and burn more efficiently than luminous flame as it burn all the carbon atoms. Plus, luminous flame produces soot.

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14y ago

luminous flame emits light, non-luminous doesn't

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13y ago

because luminous object loss some energy in the form of flame

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13y ago

If you refer to organic gas flame, then the nonluminous part refers to

complete burning, while the luminous part is tiny carbon particles which

did not burn

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Anonymous

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3y ago

Non-luminous flame

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Q: Is the temperature of a luminous flame greater or less than that of a nonluminous flame?
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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.


What is luminous flame and Explain why it takes a longer time to heat equal amount of water using a luminous flame?

yellow color in a luminous flame produces soot or carbon. carbon dioxide is present in the luminous flame but when its combined with oxygen the flame is nonluminous which is in a blue color. it takes a longer time because luminous flame is cooler than the nonluminous. I only know what luminous flame is. The inner part of luminous flame is blue while the outer part of the luminous flame is yellow. It is unsteady. Yeah. Carbon Dioxide is only present in the luminous flame. When oxygen is combined with the flame, the flame will become non- luminous which is inner and outer part are blue. Hmm. Actually luminous flame's hottest part is at the bottom while non- luminous flame hottest part is at the middle and the top. That's all i know. If i know more, i will update for you. Thank you! By helpingppl


Why is it necessary to use non-luminous flame in flame test?

because the non-luminous flame has a higher temperature and the natural spectra of the metal is noticed.


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.


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....

Related questions

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.


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.


What is luminous flame and Explain why it takes a longer time to heat equal amount of water using a luminous flame?

yellow color in a luminous flame produces soot or carbon. carbon dioxide is present in the luminous flame but when its combined with oxygen the flame is nonluminous which is in a blue color. it takes a longer time because luminous flame is cooler than the nonluminous. I only know what luminous flame is. The inner part of luminous flame is blue while the outer part of the luminous flame is yellow. It is unsteady. Yeah. Carbon Dioxide is only present in the luminous flame. When oxygen is combined with the flame, the flame will become non- luminous which is inner and outer part are blue. Hmm. Actually luminous flame's hottest part is at the bottom while non- luminous flame hottest part is at the middle and the top. That's all i know. If i know more, i will update for you. Thank you! By helpingppl


Why the dominant color of a nonluminous flame on a Bunsen burner blue?

The dominant color of a nonluminous flame on a Bunsen burner is blue. Whereas, the dominant color of a luminous flame on a Bunsen burner is orange.


Which portion of the luminous flame is the coolest?

For a Bunsen burner the lowest temperature is in the extreme lower part of the 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.


When the Bunsen burner is on but no experiment is being carried out why is it advisable to set it to the luminous flame?

So you don't burn yourself. If it's on and you're not paying attention to it, a luminous flame is easily glimpsed in your peripheral vision. If the flame was non-luminous, it's much harder to detect and causes a greater risk. the non-luminous flame also burns much hotter.


Why is it necessary to use non-luminous flame in flame test?

because the non-luminous flame has a higher temperature and the natural spectra of the metal is noticed.


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.


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 sooty flame a luminous or non luminous?

luminous


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