2007-06-19 15:28:55 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Diamond is sp3 hybridized & linked to 4 carbon atoms by single covalent bonds.It is regarded as 3-D polymer.It has very high M.P of 4200K & more energy is req. to break the bonds.In vaccum diamonds r stable upto 1500deg C but at 1800-2000 they r converted to graphite.
2007-06-19 19:31:20 · answer #1 · answered by Manu 2 · 0⤊ 0⤋
Heat diamond to about 900 degrees C in the presence of air, diamond will burn into CO2
But heat it to 1500 degrees C in the absence of air, it turns into graphite.
2007-06-20 05:10:30 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Diamond is a crystalline modification of Carbon. Diamond burns when heated with a hot enough flame ( over 800 degrees celcius, with oxygen torch ) and it is converted into CO2.
2007-06-21 04:00:33 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Even if you heat a diamond to high temperatures it will not be affected until you heat it in the absence of oxygen.
2007-06-19 15:47:14 · answer #4 · answered by Anonymous · 0⤊ 1⤋
It depends on how it is heated. If heated in vacuum at about 2073K, it converts into another allotrope of carbon - graphite. On the other hand, when diamond is heated in presence of air, it forms carbon dioxide leaving behind no ash.
2007-06-20 00:42:06 · answer #5 · answered by Thakkelapati S 2 · 0⤊ 0⤋
Not very much happens unless you would get well over 1,000 C.
Diamonds have a covalent network structure which is very strong and resistant to stresses from heat. Diamonds would have a very, very high melting point
2007-06-19 15:37:00 · answer #6 · answered by reb1240 7 · 0⤊ 0⤋
when diomond is heated at high temp. in presence of oxygen then co2 is evolved & nothing is left behind as its made up of carbon only
2007-06-20 00:39:10 · answer #7 · answered by cool 2 · 0⤊ 0⤋