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Is heating a piece of steel until it glows reversible or irreversible?
Wiki User
∙ 11y ago
Heating steel detempers it, it makes it softer.
Wiki User
∙ 11y ago
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How do you get water in the boiler?
In the combo boiler for the central heating? You need a small piece of hose (or it might have a permanent connection) to fix to the mains from the boiler. Then turn the taps near the boiler for the mains and the boiler. You want the pressure to be about 1.3 bar
What does welding do?
Welding is the process of joining two similar or dissimilar metals by heating and melting it by adding some additives on that to make the joint perfect...
Auxiliary steam stop valve?
It is a stop valve placed on an auxiliary piece of equipment. Or it could be placed at the steam main to feed an auxiliary steam system (heating, auxiliary pumping. etc.). It is not the Main steam stop for the boiler or the prime mover (engine, turbine, process), it is for a secondary service.
What is string printing?
where you take the a piece of sting dip it in the paint and put in a white piece of paper
What does 'sister' mean in building?
When you put a new piece of wood against an old piece because you want the strength but cannot take the old piece out. Typically done with joists, rafters, or studs.
What are you hearing when you shake a light bulb?
The piece of coiled wire made of Tungsten (Wolfram) that heats up and glows in the lamp.
What is an optional reversible modesty piece for a bridal gown?
A modesty piece was designed to be tucked into the breast of a woman's dress to discreetly cover her bosom in the 19th Century
When a piece of wood decays is it a chemical change?
Decaying of wood is a chemical change since it leads to the formation of a different substance. The process is irreversible.
Explain what is an irreversible change and give an example?
cutting yourself. the scar would always be there....
What sort of experiment is when heating a piece of bread on a grill it becomes black when burnt?
failing thats not an experiment
If you continue heating a piece of room temperature metal in a dark room what will be its first visible color?
red
What is irreversible change?
This means that the original materials cannot be recovered, e.g. burning gas, beating an egg. Some chemical changes can be undone, but not readily.
When heating a test tube one should always use this piece of safety equipment?
A Bunsen Burner. ******************* Safety glasses
Why porcelain piece add in solution during heating?
to not to exceed high tepareture, so that the instrument cannot damage during process
If you heat a piece of wire until it glow's what type of spectrum does it produce?
Well I know if you heat a rock until it glows, its spectrum will be thermal radaition spectrum
What is light produced by heating a piece of metal until it glows?
If you heat a metal it will begin to glow faintly red at around 500ºC, or about 950ºF. If you continue to heat it, by 800ºC (about 1450ºF) the glow will a dull cherry red and at about 1100ºC (about 2000ºF) the colour will be a lemon or light yellow colour. Finally, at temperatures above about 1300ºC (about 2400ºF) the glow appears white, and very bright. Precautions must be taken, as looking directly at an object at this temperature can damage your vision.
Why is a filament bulb not filled with oxygen?
Light in a lightbulb is produced by running a current through a wire with a high resistance. This creates a lot of heat, which when hot enough creates light. Imagine heating up a piece of steel until it glows. If the bulb was filled with oxygen, the tungsten filament would burn before it ever got to hot enough temperatures for our light needs. Therefore, we use argon so that while it gets hot, it doesn't burst into flames. Simple, really.
