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Why is a candle flame seen?
A candle flame is seen because it consists of glowing gases.
Is a candle flame luminous?
Yes, a candle flame is considered luminous because it emits light by converting chemical energy into heat and light energy. This process is known as combustion, which produces a visible glow that we perceive as light.
Show diagram of candle flame zone?
The candle has 4 zones: Blue zone Dark inner zone luminous zone non-luminous zone
Why is middle zone of the candle called luminous zone?
partial combustion takes place here and wax vapour start burning with a yellowwish flame . this region of candle flame is moderately hot. so it is called as the luminous zone
Is a burning candle luminous?
Yes, a burning candle is luminous because it produces its own light through the process of combustion. The flame emits light and heat as a result of the energy released during the burning of the candle wax.
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 the flame known as luminous flame?
It is bright, and could not be seen clearly as it emits light
Is a candle flame seen because it is luminous?
There are different types of energy. In this case, the energy apart from radiant heat is giving off energy in the visible range, ~400-800 nm wavelength. That's why you can see it.
Why is a burning candle luminous?
A burning candle is luminous because the combustion of the candle's wax produces heat, which vaporizes the wax into gas. This vapor then ignites, creating a flame that emits light as a result of the high temperatures involved. The flame generates light across a spectrum, including visible light, due to the excitation of gas molecules and the production of incandescence. Consequently, the light we see is a combination of thermal radiation from the hot gases and the glowing particles in the flame.
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 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.
What is the degree of hotness of luminous flame?
The degree of a luminous flame is 100 degree .
