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The color of a flame is determined by the oxygen to fuel ratio. A yellow flame burns because there is more fuel present. A blue flame will not continue to burn because it is fully oxygenated and contains no fuel.
Wiki User
∙ 9y ago
Wiki User
∙ 11y agoFlames change colour according to what is being burnt and whether it is complete or incomplete combustion. Blue flames usually come about due to gas being burnt as that is complete combustion so all of the gas is burnt with no bi-products. Yellow flames however, the ones that usually come about due to wood being burnt come about because of the soot (carbon) produced when it is burnt. The soot burning is what produces the yellow flames. Flames can be all sorts of colours though, for instance, if you burn copper oxide then the flame will be green.
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How do you obtain blue flame on burn-sen burner?
Increase the air flow by opening the circular valve on the stem of the burner. This will cause the flame to burn more intensely and with a blue flame. When the valve is closed, the flame will burn yellow and cooler - more like a wax candle's flame.
How hot is the yellow flame?
yes, they are. here are the flame colors in order from hottest to coolest. white - hottest blue - hotter yellow - hot orange - cooler than yellow red - cooler than all of above
Why the LPG gas flames are blue in colour?
it doesn't important that lpg always burns in blue flame, it depends upon amount of oxygen contributing to burn , in insufficient supply of oxygen lpg will also burn giving yellow flame
What kind of flame is a yellow flame called?
A yellow flame is named as a safety flame as it isn't as hot as the blue flame
Why is a blue flame noisier than the yellow flame?
A blue flame is louder than a yellow flame because there is more oxygen (air) flow present than with a yellow flame. The yellow flame indicates a lack of oxygen and incomplete combustion of the methane gas.
What is 4 differences between a yellow safety flam and a blue heat flame produced by a Bunsen burner?
The blue flame is really hotter than the yellow flame. If you put your hand over a blue flame and skim through it, it would burn you but if you put it over a yellow flame it wouldn't burn you that much.
How do you obtain blue flame on burn-sen burner?
Increase the air flow by opening the circular valve on the stem of the burner. This will cause the flame to burn more intensely and with a blue flame. When the valve is closed, the flame will burn yellow and cooler - more like a wax candle's flame.
How do you get blue flame to yellow flame?
You reduce the supply of fuel. A "yellow" flame is a lot cooler than a "blue" flame. As it pertains to Chemistry, the dominant color for a nonluminous flame (yellow) is blue.
Is a yellow flame of a Bunsen burner hotter than the blue flame?
No, a yellow flame is colder than a blue flame.
Does the blue flame on a Bunsen burner need the air hole open or shut?
It needs to be open to create the hot, blue flame that roars. If the air hole is shut, the flame will burn yellow, similar to a candle.
Why is candle flame yellow?
candles burn with a yellow flame because its an incomplete combustion
How hot is the yellow flame?
yes, they are. here are the flame colors in order from hottest to coolest. white - hottest blue - hotter yellow - hot orange - cooler than yellow red - cooler than all of above
Difference between blue flame and yellow flame?
The color <> Blue flame is one of the hottest Yellow is one of the coolest
Why the LPG gas flames are blue in colour?
it doesn't important that lpg always burns in blue flame, it depends upon amount of oxygen contributing to burn , in insufficient supply of oxygen lpg will also burn giving yellow flame
Does a yellow flame produces more energy or does a blue flame?
yellow
What colour flame does sulfur burn with?
Iron is a sort of sparkly-black when it is burned.
What is the blue flame called of a Bunsen burner?
The blue flame is called a roaring flame and the yellow flame is called the safety flame.
