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What are the different zones of candle flame?
The candle flame has 4 zones from innermost to outermost: 1)Blue zone: It is near the base of the flame. Here the fresh air rapidly mixes with was vapour formed from the molten wax.A part of wax vapour completely burns and gives rise to blue flame. 2)Dark inner zone: This part consists of unburnt wax vapour given off by molten wax.It is the coldest part of the flame It is dark because of of decomposed carbon particles. 3) Luminous zone: In this zone partial combustion takes place with liberation of a lot of heat. This zone is hotter than the dark inner zone. 4) Non luminous zone:It is a zone were complete combustion takes placeIt is hottest part of the flame and is hardly visible.
What things from superstores have the oxidising symbol mean?
'Oxidising' is a substance that provides oxygen to allow things to burn more. For example the sodium nitrate I hope this helped because it is what I am learning at school! =)
How many climate zones does south America have?
Two
What are Two kinds of flame?
the yellow/safety flame - thats the one that burns less the blue flame - burns THE ROARING FLAME - that one burns a lot and you can tell the difference from the blue flame because it makes a roaring sound
What type of a flame is best to use?
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.
How many layers does the flame have?
The hottest flame has an excess of oxygen and has two zones or cones. A lower-temperature flame, meanwhile, has three zones.
How many layers does the hottest flame have?
The hottest flame has an excess of oxygen and has two zones or cones. A lower-temperature flame, meanwhile, has three zones.
How many Zones of burner flame?
THREE!
What is the oxygen to acetylene ratio in oxidising flame?
it is 1:0.8
What is the second hottest part of burner flame?
outer oxidising zone is the second most hottest part of burner flame....
what are the two most polluting zones of a candle flame?
the blue zone and the non - luminous zone of a candle flame are the two most polluting zones.
How do you extinguish an oxidising flame?
Remove the flame's heat/oxygen/fuel supply. Oxygen could be removed by pouring water on it (do not do this for burning liquids like oil). A good way is to use a fire EXTINGUISHER.
Distinguish between an oxidising flame and a carburising flame in oxy- acetylene welding?
Basically, you need to look at the flame itself, if the tip of the nozzle is bluish/white, and long , then the flame is a carburising or reducing flame, it contains a high ratio of acetylene compared to oxygen, and will produce a cooler sooty flame. this can be used to make metals more malleable when working them, but the carbon is not helpful, and cannot be used for welding operations An oxidising flame is more pupleish/white and is far hotter, with more oxygen than acetylene, this flame is used in cutting, but will harden steel, making it brittle. in between the two is the neutral flame where welding operations are carried out. Images can be seen at: http://www.twi.co.uk/content/jk3.html (not my site)
What are the various zones of a candle flame?
innermost zone outer zone middle zone
What is the meaning for oxidising?
Oxidising is losing eletrons
What is the oxidising agent in kmno4 h2c2o4 h2so4?
KMnO4 and H2SO4 are oxidising agents. Oxidising agents are hungry for electrons...
Which one is oxidising between sodium an chlorine?
chlorine is oxidising
