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Why does a piece of iron appear red when heated sufficiently and blue at a higher temperature?
Wiki User
∙ 16y ago
It has to do with something called black body radiation. As something gets hotter, the wavelengths of light the it emits get smaller and smaller, which means that the color goes from red to blue.
Look at the Wikipedia chart of color versus temperature to see the color variation as things get hotter and hotter.
Also look at the MHHE.com applet program. On this site, you can change the temperature manually and watch what happens to the spectrum of the light that is emitted.
See the Web Links to the left for more information about black body radiation and how it works.
Wiki User
∙ 16y ago
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When oil is heated then temperature would be?
Higher, I suppose.
What is heated water pressure at 110 degree C?
Liquid. The hottest temperature water can get to is 110c any higher and it turns into a gas (steam)
Which has higher temperature steam or water boling in kettle?
Steam. The reason for this is water boils at the temperature of 212 degrees F. Steam can be heated to much higher temperatures than that. Some engines that are water cooled has steam at temperatures of over 700 degrees. Water basically becomes a plasma at this temperature.
What happen to the temperature boiling water as it's boil?
When water is boiling, the temperature remains constant, as the energy it is absorbing is being used to change the liquid water into water vapor.
Which factor could affect the temperature at which water boils?
Air pressure affects the temperature at which water boils. At higher altitudes, air pressure is lower, and water boils at a temperature below 100 oC (212°F).A rather non-obvious element is the smoothness of the container in which the water is heated. The first irregularity in the surface (or dirt within otherwise clean water) will constitute a nidus-- and that is where the first bubbles will appear; theoretically, an ultra-smooth pan could super-heat clean water, well-above the normal boiling point temperature!
When oil is heated then temperature would be?
Higher, I suppose.
Does the heated tennis ball go higher or the room temperature or the frozen one?
The heated, then the room temperature, then the frozen ball. It's the heated because of how fast the molecules are moving. :)
What does water evaporate when heated?
At higher temperature the continuous movement of water molecules is accelerated.
Does temperature affect whether or not a spectrum shows?
Temperature does affect whether or not a spectrum shows up and how. The higher the temperature is, the more red the spectrum will appear, while the cooler it is, the more blue it will appear.
A piece of iron and a cup of water both ahave the same temperature If they are heated so the thermal engergy of each doubles?
the iron will have the higher temperature.
Why is the temperature of soil higher than the water when heated by the sun?
Because water has a higher thermal capacity than soil and also water tends to circulate which soil can't do.
How does the temperature of a soccer ball affect how far you can kick it?
Yes it does affect it cold does not go as far as a heated ball
Why does temperature affect the rate sodium thiosulphate and hydrocholric acid react?
When atoms get heated more, they get quicker, and if the temperature of one or more of the substances are higher, the rate of the reaction will happen quicker.
What happens when the temperature of a substances changes?
When the temperature of a substance changes, the amount of random thermal motion on a molecular or atomic level changes accordingly; higher temperature means faster motion. A sufficient amount of temperature change will also result in a phase change. Cooling liquids freeze, heated liquids boil, heated solids melt, and so forth.
What is heated water pressure at 110 degree C?
Liquid. The hottest temperature water can get to is 110c any higher and it turns into a gas (steam)
Which has higher temperature steam or water boling in kettle?
Steam. The reason for this is water boils at the temperature of 212 degrees F. Steam can be heated to much higher temperatures than that. Some engines that are water cooled has steam at temperatures of over 700 degrees. Water basically becomes a plasma at this temperature.
How does temperature affect molecules in liquids?
Molecules in a liquid are engaged in random thermal motion; they move around at random, bouncing off each other constantly. The temperature measures the amount of this motion. At higher temperatures, they are moving faster. At lower temperatures they move more slowly. Of course, at some point you also get phase changes. Increase the temperature sufficiently and the liquid will boil; decrease it sufficiently and (with the exception of helium) it will freeze.
