why does it turn red?

Question

why does metal turn red when it gets hot? is it because the chemical properties or what?

Answer 1

The reddish color results from the metal object acting as a "black emitter", i.e. it emits a continuum of radiation with the amplitudes distributed unevenly across the wavelengths. For red hot metal (roughly 800K) the amplitude maximum lies in the infrared, which means that shorter wave lengths have less amplitude than high ones. At higher temperatures (1300K) you get white hot matter, which will emit the visible light in about equal amplitudes, and even some ultraviolet. (This is why people who work quartz glass usually are sun-tanned as if spending the entire day on the beach - quartz glass gets soft at aroung 1400K.)

Answer 2

When it is heated to immense temperature, it returns to its former molten state. A chemical reaction occurs that further increases the temp. It is this reaction that causes the red color. Any change in structure of an element, is a chemical reaction and causes increase in temp. When water turns to ice, as in rain to snow, a chemical reaction occurs and the environmental temperature increases slightly.

Answer 3

Lancenigo di Villorba (TV), Italy

When you put a bright metal piece at direct flame's exposure, you could see a red light emission.
What is happening?
As you know, metalic nature permit a "free behaviour" of its outermost atomic shell's electrons. Flame's exposure determine energy's absorption which excite the overwritten electrons. Any time energy soaked satisfy "energy quanta" (see Planck's theory), then electrons rised toward superior "energy-level".
Among characteristics of superior "energy-level" there is energy irradiation by means of several forms distinguished by energy-leved where electrons excited are overcome. Basically, electrons and warmed metals emit infra-red radiactions, e.g. heat in colourless conditions ; the greater warming leads to novel conditions, radioactions emitted start belonging in "VIS range" (e.g. radioactions belong to visible light spectra). The former emission belonging in VIS is RED.

I hope this helps you.

Answer 4

because you had too much sex with your b/f

hope this helps!!! :)