The closed flame (orange) is only ever used when turning on the bunsen burner or when you are leaving it for any amount of time to insure the safety of your class mates.
The open flame (blue) is used at all other times.
Please note it can be hard to see the blue flame so it is important that you stay aware and safe as it is often as hot as 700oC.
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).
if you are talking about what flame to use on a Bunsen burner than the yellow flame is to make sure that everyone knows that there is a flame but the blue flame (less visible) is used as the hotter flame and the better one.
Much to his annoyance, the shop had just closed when he got there.
You can't it is always the same. You only use the blue flame to heat things because the yellow flame is the safety flame and the blue flame is hotter.
because it can harm you or your clothes so you should never play around with half open burners they let out blue flame which is very dangerous because it is the dirtiest falme
To properly light a Bunsen burner, first ensure the air hole is open and the gas valve is closed. Use a striker to ignite the gas as you slowly open the valve. Adjust the flame by controlling the air hole and gas valve until you have a blue, steady flame.
I dunno an who cares! we use closed circles when we include the number on which it is and if we dont want to include it then we use open circle
Open primaries allow any voters to participate, while closed primaries are restricted to party members Apex :)
luminous
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).
If points on the circumference are excluded from the locus then an open circle, else a closed one.
normally closed but if u dont want to lock your self out then leave it open
use cut
The flame that you use the most is the safety flame. The safety flame is the yellow one it is not too hot and not too cold. The air hole should be half open for the safety flame and it makes a hissing sound. Your Welcome xx :D
To change from a safety flame to a roaring flame on a gas stove, increase the gas flow by turning the knob clockwise to allow more gas to feed into the burner. Then, use a long match or a gas lighter to ignite the gas. Adjust the knob to regulate the flame size to achieve the desired roaring flame.
Open ear hearing aids have better sound quality based on reviews. I would personally only use the open ear design.
because you have the vents open on the bunsen burner the flame is getting more oxygen, making it hotter. Different flame types of Bunsen burner 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).