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Combustion or burning requires oxygen of the air. So, if there's no air, the flame will extinguish immediately because there's no oxygen.
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Why can you hold your fingers beside the candle flame without being harmful but not above the flame?
Beside the flame the heat you experience is that heat being radiated as light - if you hold your finger too close or leave it too long, you will get harmed! Beside the flame the air is cool as cool air is being sucked into the flame. However above the flame the hot gases produced by the combustion of the wax in the flame are rising upward by convection. These hot gasses will heat you skin by conduction and you will be burned very quickly.
What flame is what you called when air holes are closed?
Safety flame
Do closing air-holes on a Bunsen burner make the flame hotter?
Because more air is able to fuel the flame's reaction; the collar at the bottom of the tube is adjusted so more air can mix with the gas before combustion, the flame will burn hotter.
What do you call a flame on a Bunsen burner when the air hole is half open?
air hole closed- flame is the standard yellow-orange color air hole half open- flame is a violet-blue color air hole open- roaring blue flame
Why does turning the collar on a busen burner make the flame hotter?
Flames need air to expand and grow, or become hotter. The oxygen circles the flame and makes the flame alter. The collar allows air to get to the flame.
How long can you last without air?
'Bout 4 minutes
Why You can hold fingers beside the candle flame without harm but not above the flame why?
Beside the flame the heat you experience is that heat being radiated as light - if you hold your finger too close or leave it too long, you will get harmed! Beside the flame the air is cool as cool air is being sucked into the flame. However above the flame the hot gases produced by the combustion of the wax in the flame are rising upward by convection. These hot gasses will heat you skin by conduction and you will be burned very quickly.
Why can you hold your fingers beside the candle flame without being harmful but not above the flame?
Beside the flame the heat you experience is that heat being radiated as light - if you hold your finger too close or leave it too long, you will get harmed! Beside the flame the air is cool as cool air is being sucked into the flame. However above the flame the hot gases produced by the combustion of the wax in the flame are rising upward by convection. These hot gasses will heat you skin by conduction and you will be burned very quickly.
Why can you hold your fingers beside the candle flame without being harmed but not above the flame?
Beside the flame the heat you experience is that heat being radiated as light - if you hold your finger too close or leave it too long, you will get harmed! Beside the flame the air is cool as cool air is being sucked into the flame. However above the flame the hot gases produced by the combustion of the wax in the flame are rising upward by convection. These hot gasses will heat you skin by conduction and you will be burned very quickly.
Why does opening the air hole on a Bunsen burner change the flame?
Because you are letting air in, without air it's usually the flame will just burn out, but in a Bunsen burner's case the flame will just end up roaring, because there's plenty of air going around the room your in but not from the base of the flames, it's like it is rushing to get air.
Why does camel last long than humans without water?
They can last longer because they are said to have areas in their body (humps) that can adsorb the water in the air (humidity).
How long can a person live without air?
A person can live minutes without air.
What is the nature is flame obtained when magnesium burn in air?
Very bright white flame - you can't look at it directly without damaging your eyes, and usually look at it through tinted glass.
What flame is what you called when air holes are closed?
Safety flame
Why is it safer to close the air holes to obtain a luminous flame?
When the air hole on a Bunsen burner is closed, air is excluded, so the flame becomes a yellowish candle-like flame.
What is the purpose of the flame that is lit below a hot air ballon?
That flame is the source of heat for the hot air in the hot air balloon.
How do you control the type of Bunsen flame?
Decide which flame to use. If the air hole on the Bunsen is open you will get a roaring flame a more gentle heat, close the air hole a Little flame will be quiet.
