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What happens to a evaporatind dish when placed over a luminous flame?
Wiki User
∙ 13y ago
it doesnt change its color
Loma Schowalter
Wiki User
∙ 9y agoThere will be a deposit if there are substances in the solution: For instance, a saline solution should leave a salt deposit.
Wiki User
∙ 12y agoIn your laboratory skills PDF where you should look for the answer.
Wiki User
∙ 12y agoit becomes brownish or black due to the soot produce by the flame during heating. thus the underside of the dish will be brownish or black and even some sort of dusty...
sittie asiah macapan...
the black deposit must be on porcelain because of luminous flame which spread the hot coal or black deposit on white ceramic material.
Wiki User
∙ 11y agoIt turned black
Wiki User
∙ 11y agobecause it i9s make from porcelain
Wiki User
∙ 13y agoIt becomes black due to soot.
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What happens if you use a luminous flame to boil water in a test tube?
Carbon is settled on the test tube.
Which bunsen burner luminous or non luminous flame used in laboratory and why?
The blue flame is used because it is the hottest.
Which flame represents complete combustion?
Non-luminous flame
What is the luminosity of a flame?
The degree of a luminous flame is 100 degree .
What is the meaning of non luminous flames?
The non luminous flame is hot flame; the fuel is mixed with more oxygen.
What happens to evaporating dish when placed to a non-luminous flame?
it doesnt change its color
What happens to the color of the flame if you spray charcoal in the non luminous flame?
The flame become red.
What is the difference between luminous and non luminous?
-A non-luminous flame is when the air hole of the Bunsen burner is closed but a luminous flame is produced when the air hole is opened.-A luminous flame has an outer of orange colour and an inner of blue. A non-luminous flame has an outer of blue and an inner of orange.-A luminous flame produces soot while a non-luminous does not produce soot.-A luminous flame is weak and unsteady. A non-luminous flame is strong and steady.-A non-luminous flame is very hot while a luminous flame is not too hot.
Should a luminous or non luminous Bunsen flame be used for heating in the laboratory and why?
Non-luminous flame should be used for heating in the laboratory because the flame is steady and produce little or no soot.Non-luminous flame is very hot thus, it is recommendable to use for laboratory purposes.Luminous flame is unsteady while non-luminous flame is steady.Another reason of using non-luminous flame because the flame of non-luminous is blue, and not visible unlike the luminous flame which is yellow in colour and visible.
What happens to a nichrome wire in a non-luminous flame?
The color of wire is unchanged.
Is non luminous flame steady or unsteady?
Non-luminous flame should be used for heating in the because the flame is steady and produce little or no soot. Non-luminous flame is very hot thus, it is recommen- dable to use for laboratory purposes. Luminous flame is unsteady while non-lumi- nous flame is steady. Another reason of using non-luminous flame because the flame of non-luminous is blue, and not visible unlike the luminous flame which is yellow in colour and visible.
How does luminous flame exist?
because of the yellow flame, yellow is a bright coulor........... Scientific term......... The collar is closed to get luminous flame and collar open to get non- luminous flame....
Is sooty flame a luminous or non luminous?
luminous
Is a candle flame luminous?
No it is not luminous!
What two flames flickers non-luminous or luminous?
A luminous flame flickers while a non-luminous flame remains steady.
What is the degree of hotness of luminous flame?
The degree of a luminous flame is 100 degree .
What is luminous flame and Explain why it takes a longer time to heat equal amount of water using a luminous flame?
yellow color in a luminous flame produces soot or carbon. carbon dioxide is present in the luminous flame but when its combined with oxygen the flame is nonluminous which is in a blue color. it takes a longer time because luminous flame is cooler than the nonluminous. I only know what luminous flame is. The inner part of luminous flame is blue while the outer part of the luminous flame is yellow. It is unsteady. Yeah. Carbon Dioxide is only present in the luminous flame. When oxygen is combined with the flame, the flame will become non- luminous which is inner and outer part are blue. Hmm. Actually luminous flame's hottest part is at the bottom while non- luminous flame hottest part is at the middle and the top. That's all i know. If i know more, i will update for you. Thank you! By helpingppl
