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2006-09-15 22:05:04 · 5 answers · asked by kunal s 1 in Science & Mathematics ➔ Other - Science
http://www.skytopia.com/project/science/physics.html#2
is the link, where u can get ur answer.
At normal pressures & in the presence of air, a mere 400 degrees Celsius will make it catch fire, and turn it into carbon-dioxide. Below that, it skips the liquid state & sublimates.
Liquid state for diamond is reached at 3500 degree Celsius, but it needs a low oxygen presence and great external pressure to keep it from sublimating or burning .
2006-09-15 23:55:55 · answer #1 · answered by Innocence Redefined 5 · 0⤊ 0⤋
Question - A student asks "Wouldn't it be impossible to gauge the
melting point of a diamond because it is so high, the equipment would be
destroyed in the process?" I discoverd the melting point is over 3800
Kelvin but have no idea how this was arrived at. Can you help us?
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A very perceptive student!!! You are correct, the melting point of diamond
at atmospheric pressure is the highest of all known materials, so its
melting point must be measured under high pressure and the melting point at
atmospheric pressure calculated from thermodynamics, which is quite
reliable. At 1 atm the melting point is about 4000 K +/- ~200 depending upon
whose measurements you believe. However, the melting temperature drops to
about 1200 K at 600k-bar. Both of these conditions are attainable in the
proper equipment.
2006-09-15 22:14:23 · answer #2 · answered by ? 6 · 1⤊ 0⤋
To melt a diamond you would have to have all 4 burners on your stove on and then find a big enough pan to cover all 4 burners. It would probably take over an hour before you would have a liquid diamond. If you could find a nice mold to put the diamond in you could make your own design by pouring the liquid diamon into the mold. Be very careful because you could burn yourself very badly.
2006-09-16 00:52:07 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Diamond has the highest melting point of any natural substance which is approximately 4,000 degrees centigrade.
2006-09-15 22:39:47 · answer #4 · answered by Lutfor 3 · 1⤊ 0⤋
HOT!!! really REALLY GOD DAMN HOT!!!!!!!!!!!!!!
2006-09-15 22:13:32 · answer #5 · answered by Anonymous · 0⤊ 0⤋