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luminous
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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 safer to close the air holes to obtain a luminous flame?
Closing the air holes limits the amount of oxygen available for combustion, which causes incomplete burning of the fuel and produces a sooty, luminous flame. This is typically less intense and therefore safer than an open, non-luminous flame.
What two flames flickers non-luminous or luminous?
The two flames that flicker both non-luminous and luminous are a candle flame and a gas stove flame. When burning normally, these flames emit light due to combustion. However, if they are disturbed or lack sufficient oxygen, they can flicker and may become non-luminous.
Why is a Bunsen burner not used for heating when the air hole is closed?
Closing the air hole on a Bunsen burner restricts the flow of oxygen needed for combustion. This leads to incomplete combustion, producing a yellow, sooty flame that is not suitable for heating applications. Keeping the air hole open allows for better oxygen flow, resulting in a hotter, more efficient blue flame for heating.
Which portion of non luminous flame is the hottest?
The inner cone of a non-luminous flame is the hottest portion. This is where complete combustion occurs due to the ample supply of oxygen, resulting in higher temperatures compared to the outer cone.
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.
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 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.
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.
Why is it safer to close the air holes to obtain a luminous flame?
Closing the air holes limits the amount of oxygen available for combustion, which causes incomplete burning of the fuel and produces a sooty, luminous flame. This is typically less intense and therefore safer than an open, non-luminous flame.
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.
What two flames flickers non-luminous or luminous?
The two flames that flicker both non-luminous and luminous are a candle flame and a gas stove flame. When burning normally, these flames emit light due to combustion. However, if they are disturbed or lack sufficient oxygen, they can flicker and may become non-luminous.
Which flame represents complete combustion?
Non-luminous flame
What happen to the charcoal if you spray to the non-luminous flame?
If you spray charcoal onto a non-luminous flame, the charcoal will burn due to the presence of oxygen in the flame. The heat from the flame will cause the charcoal to ignite and combust, creating a bright and hot flame.
A non luminous flame should be put off or adjusted to a luminous flame. Explain?
fire
Is the temperature of a luminous flame greater or less than that of a nonluminous flame?
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 blueBlue flames are the hottest flamesa 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 oxygenA 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 flame1.fuel2.oxygen3.friction or source of sparkLuminous objects emit light. The sun is luminous; the moon is non-luminous.
What happen if heat is applied mat the bottom of the test tube?
differentiate luminous flame from non-luminous flame
