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The temperature is higher and the soot is minimal.
Wiki User
∙ 6y ago
Caleb Pierce
Wiki User
∙ 13y agoFlames that are not luminous are much more dangerous because it is less easy to see the extent of the flame itself. Flames with less efficiency burn more orange, produce more smoke, and less heat. These flames are safer because their luminosity allows them to be easily seen, and less heat is produced. The efficiency of fire is measured in how much of their fuel is turned into heat rather then light, smoke, ash, or any other byproduct of burning. Fire is naturally inefficient, it is within the red to yellow spectrum and creates a lot of smoke and ash. Flames that are well controlled by man made machinery look blue and produce much less smoke. Invisible flames or non-luminous flames are very rare; 100% Pure octane can produce a completely invisible flame because it burns at such great efficiency. The inefficiency of fire works to our advantage by having it produce light so we notice it, and know to stay away.
Anonymous
tomake lighit
Why is it advisable to put off a non luminous flame when not in use?
Non- Luminous can burn efficiently because luminous flames don't burn as efficiently as non-luminous ones, they don't produce as much energy. This means that the non-luminous flames have a lot more energy than luminous ones, and their flames are actually hotter. This is why the luminous ones look yellow and the non-luminous ones look blue. Hotter flames burn blue and (relatively) cooler ones burn yellow.
When a lamp is turned off is it luminous or non-luminous?
If the bulb is switched off, then we would call it non-luminous.
Is a lamp luminous or non luminous?
Planets( Mercury, Venus, Earth, Jupiter, Saturn, Uranus, Neptune) and also Moons are Non-Luminous objects they don't emit light. The reason we see them because they reflect light from the Sun.
What are luminos body?
Bodies which emit light are luminous bodies and those who don't emit light are known as non luminous bodies Example - stars are luminous bodies while planets are non luminous bodies Tube light is a luminous body while a chair is non luminous
Is gold non luminous object?
sun (a luminous object) emits its own light and the moon ( a non luminous object ) reflects the light from the sun to earth that's how we can see the moon. The same way gold is a non luminous object.
Properties of luminous and non-luminous flames?
luminous flames have a bluish to violet color and it means that the system is given enough oxygen for the reaction. Luminous flames will not produce soot. non luminous flames are orange, red, and yellow much like your everyday campfire but this system is not given enough oxygen therefore produce soot.
What are the advantages of using a non-luminous flame?
Non- Luminous can burn efficiently because luminous flames don't burn as efficiently as non-luminous ones, they don't produce as much energy. This means that the non-luminous flames have a lot more energy than luminous ones, and their flames are actually hotter. This is why the luminous ones look yellow and the non-luminous ones look blue. Hotter flames burn blue and (relatively) cooler ones burn yellow.
What two flames flickers non-luminous or luminous?
A luminous flame flickers while a non-luminous flame remains steady.
What kind of flame is non luminous?
No-luminous flames, with a blue color, are formed when the oxygen is in excess.
Is a luminous flame a hot flame?
All flames are hot
Name some luminous objects?
stars, flames, bulbs, the sun
What is the purpose of comparing Luminous and non luminous flames?
luminous flames are those which throw or Emmit bright light of great intensity......but non luminous flames are those which just glow and do not emmit light of such great intensity................ it should not be misunderstood with candle ......and coal........as one emits flame and the other does knot's as there is no flame......there is no point of luminous or non luminous
What is the meaning of non luminous flames?
The non luminous flame is hot flame; the fuel is mixed with more oxygen.
What are the two kinds of flames produced by Bunsen burner?
The two types of flames a Bunsen burner can produce are a luminous, yellow flame and a "roaring" blue flame. The blue flame is much hotter than the yellow flame.
Why is a Bunsen burner not used for heating when the air hole is closed?
When the air hole is closed, the flame is a luminous flame. This flame is not ideal for heating for the following reasons: it is not as hot as the non-luminous flame it is very unstable it produces a lot of soot thus, only non-luminous flames (the blue one) is ideal for heating. :)
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.
Why is it advisable to put off a non luminous flame when not in use?
Non- Luminous can burn efficiently because luminous flames don't burn as efficiently as non-luminous ones, they don't produce as much energy. This means that the non-luminous flames have a lot more energy than luminous ones, and their flames are actually hotter. This is why the luminous ones look yellow and the non-luminous ones look blue. Hotter flames burn blue and (relatively) cooler ones burn yellow.
