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Name two objects which are non-luminous at room temperature but can be made luminous when heated?
Harishmajethia
-- the filament in an incandescent light bulb
-- the coils in a bread toaster
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∙ 14y ago
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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.
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....
What happens to a quartz when its heated?
It rises in temperature.
What is the water temperature for glofish?
I have mine in a heated aquarium that is about 76 to 82 degrees.
When heated a pure crystalline solid will?
Exhibit a sharply defined melting temperature.
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 the density of objects when the get heated?
Raising the temperature the density is lowered.
What is the meaning of luminous materials?
Luminous means giving off light. Any material becomes luminous if sufficiently heated.
Color of copper when heated by non luminous flame?
Green/Blue
How do some objects change when they are heated?
Solid objects may melt into a liquid form when they are heated. Liquids may become gases when heated. When objects are combined and heated, they can become new objects altogether, like in cooking.
if two objects different in size were heated at a very high temperature which object would cool the fastest?
If two objects were heated quickly to the same temperature, one larger in size than the other, then they would cool at different temperatures. The smaller one would cool faster as it has less mass that is able to hold the higher temperature as long.
How does temperature affects the density?
Temprature affects the volume, since most objects expand when they are heated. And density is mass / volume.
Does temperature affects the density?
Temprature affects the volume, since most objects expand when they are heated. And density is mass / volume.
How the temperature affects the density?
Temprature affects the volume, since most objects expand when they are heated. And density is mass / volume.
What are the properties of thermometric material?
when objects are heated or cooled, their temperatures change, along with some of their properties, these properties are known as Thermometric Properties. Examples include: when objects are heated, they expand, when they are cooled, they shrink. Another is, if an object is heated, its' gaseos pressure will increase and will decrease when object is cooled.Read more: What_are_thermometric_properties
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....
What is expansion differential?
The difference in expansion of two objects having different length and heated in same temperature difference is called differential expansion.
