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Forum Supports LaTex. Well i know that Diamonds will not decay to graphite. Based on previous chapters in chem class, i know that Diamond's structure differs from Graphite, Diamond has more carbon-carbon bonds thus is the reason for the its high melting temp. It takes a lot of energy to break all the bonds in Diamond. But,as we are just starting the chapter on free energy, i dont see the relationship.
Yggdrasil Retired Staff Sr. After estimating the planet's mass and radius, and studying its host star's composition, scientists now say the rocky world is composed mainly of carbon in the form of diamond and graphite , as well as iron, silicon carbide, and potentially silicates.
At least a third of the planet's mass is likely pure diamond, info. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Are diamonds really forever? Ask Question. Asked 6 years, 3 months ago. Active 1 year, 6 months ago. Viewed 16k times. I digress and excellent luster what do you expect, it's a diamond combine to make the gemstone coveted by all.
Diamonds are the stuff of awesome. But do they really exist forever? Wikipedia notes that, Diamond is less stable than graphite, but the conversion rate from diamond to graphite is negligible at standard conditions. Chance of macroscopic quantum tunneling!! I don't know precisely how much, but quite large Improve this question. HyperLuminal HyperLuminal 2, 3 3 gold badges 17 17 silver badges 28 28 bronze badges.
Like x more pressure. Does it become a super diamond or black hole dimond or something like that??? SciAm online perhaps, but I'm not sure.
It might be used for "inner" anvils in a nested pressure anvil situation, it mentioned. The first hole is like the energy state of diamond and the deeper hole is the energy state of graphite. When you heat up diamond or bombard it with ions, the atoms gain enough energy to pop up over the energy barrier and reconfigure to graphite. Under normal conditions, the kinetic energy of the atoms is small compared to the energy barrier, so that the degradation of diamond to graphite is so slow as to be virtually non-existent.
In other words, if you are only going to wear a diamond on your finger at temperatures comfortable to humans away from high ion sources, then the diamond will last millions to billions of years. On a human time-scale and for everyday human uses, the phrase "diamonds are forever" is a very good approximation to the reality. Nevertheless, other secondary and local minima of free energy corresponding to perturbations imposed on the system may exist At higher temperatures or under intense ion bombardment, the degradation of diamond to graphite becomes much faster.
The degradation of diamond can have important practical implications.
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