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Why does the airhole have to be closed when lighting a Bunsen burner?
Wiki User
∙ 12y ago
Because if the air hole was wide open, the flame will be blue, which is going to be really hot so you have to leave it at a safety yellow flame which is when the air hole is closed when lit. It could be dangerous to leave a Bunsen burner on a blue flame.
this is confusing, explain more clearly, geez is dat too much to ask?
Wiki User
∙ 12y ago
Wiki User
∙ 12y agobecause when you close the airhole it turns onto a yellow falme(also known as safety flame) it must be on the yellow flame so you can see it , when you want to heat somethin over the Bunsen burner that's when you have it opened on the blue flame because the blue flame is the hottest flame.
Wiki User
∙ 12y agoTo save burning yourself.
Allowing the air in, causes the Bunsen to burn with an intense, blue, hot flame. Lighting it in this way may cause burns.
With the hole shut, the flame is yellow and comparitively cool, you can even pass your hand through it, without being burned.
Wiki User
∙ 15y agoIt Stops The Air Mixing With The Gas The Less Air Produces A Cooler Flame Its Safer
Wiki User
∙ 13y agohuh, oh yeah.... cos u will be caught on fire
Wiki User
∙ 12y agoOxygen is mixed with fuel gas through the holes without oxygen combustion process does not occur.
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Word equation for the air hole on a Bunsen burner is closed?
Ch4 + 5o2 ------> co2 + 2h2o +302
How do you light Bunsen burner?
The first step in lighting a Bunsen burner is to check for safety. Next you make sure the holes are closed, light the match, turn on the gas tap, and put the match to the top of the burner. Once lit, you adjust the flame.
When air hole of the Bunsen burner is closed what is the observation?
When the air valve in closed a yellow luminous flame is observed due to carbon particles from in incomplete combustion.
What is the maximum temperature that can be achieved by the yellow flame of a Bunsen burner?
With oxygen closed off and a yellow flame the temperature is about 1000 degrees Celsius.
What is the purpose of a collar on a Bunsen burner?
It's the part of the Bunsen burner which lets in air, adjusting the strength of the flame. basically the hole at the bottom with the twisty bit.
What is the safest flame on a Bunsen burner?
when you light up the burner you should see that the Bunsen burners air hole is closed that is the safest flame
What are the precaution that should be taken when using the Bunsen burner?
Nothing much really. Just don't touch the flame, wear goggles and that's all. Using a safety mat is unnecessary and it doesn't really matter if you keep the airhole at the base open or closed.
Bunsen burner blue flame?
The blue flame of the Bunsen burner is when it is hottest. The yellow flame is the safety flame. you should always start the burner on the safety flame which is produced when the holes on its base are closed.
Is the hole open or closed on a Bunsen burner to make a safety flame?
It is closed to make a safety flame.
What is the name when the air hole is closed on a Bunsen burner?
It is a luminous yellow flame. 🔥
What colour is the flame when the airport is open and when the airport is closed on a Bunsen Burner?
its a orange colour when closed and a blue colour when is open
What Are The 4 Bunsen Burner Flames?
The four(4) flame types of Bunsen burner is depending on flow through the throat holes (holes on the side of the Bunsen burner -- not to be confused with the needle valve for gas flow adjustment). 1) air hole closed (Safety flame used for when not in use or lighting). 2) air hole slightly open. 3) air hole half open. 4) air hole almost fully open (this is the roaring blue flame).
Word equation for the air hole on a Bunsen burner is closed?
Ch4 + 5o2 ------> co2 + 2h2o +302
Why do you need to ensure that the air hole is closed before you light the bunsen burner?
it's to prevent a strike-back
What happens when the hole on a Bunsen burner is closed?
The "air-hole" of a bunsen burner allows some of the flame to escape so that the heating flame does not become too hot. A flame that is too hot can damage laboratory equipment. When the air hole is closed it is a yellow sooty flame like the fires we have at home.
When air hole of the Bunsen burner is closed what is the observation?
When the air valve in closed a yellow luminous flame is observed due to carbon particles from in incomplete combustion.
Can the the flame of closed air hole Bunsen burner can used for heating?
Yes,it can .But it might take longer time to heat
