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That really depends on the exact pressure. Look at the Wikipedia article "Carbon#Characteristics" (article "Carbon" section "Characteristics"). Especially, take a look at the phase diagram.
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∙ 10y ago
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What is the boiling and melting point of diamond?
Diamond, as a rule does not melt or boil under ordinary atmosphere. It simply goes up in smoke (converts directly to CO2 when heated to 800 degrees F in the presence of oxygen). Its melting point (at very high temps) is roughly 3500 degrees Celsius (very hot), but you need extreme pressure to achieve it (otherwise, it converts to CO2). Its melting point is the highest of all known materials, in large part because of the covalent bonds and the fact its atoms (carbon) are quite small and thus pack very tightly.
What is true about the melting point and freezing point of water?
At standard pressure the melting (freezing) point of pure water is 0 0C.
Can heat destroy a diamond?
Diamond has the highest melting point of any mineral: 3820 degrees Kelvin.
how can you melt diamond?
Diamond is a form of carbon. Carbon melts at 8300 °F but only if held under pressure of around 1600 psi.Diamond melts at 3,820 degrees Kelvin, which is the highest melting point of any mineral.
What is the melting point of carbon at room temperature?
First, (at room temperature) doesn't mean anything, because carbon will not melt at room temperature. There are different data for melting point found: 3773 K & 3820 K are two that were found. But look at the phase diagram in the Wikipedia article. The melting point will depend on the pressure, and the form of carbon (diamond, graphite, or amorphous).
What is the boiling and melting point of diamond?
Diamond, as a rule does not melt or boil under ordinary atmosphere. It simply goes up in smoke (converts directly to CO2 when heated to 800 degrees F in the presence of oxygen). Its melting point (at very high temps) is roughly 3500 degrees Celsius (very hot), but you need extreme pressure to achieve it (otherwise, it converts to CO2). Its melting point is the highest of all known materials, in large part because of the covalent bonds and the fact its atoms (carbon) are quite small and thus pack very tightly.
What is the melting point of copper diamond and glass?
The melting point of copper is 1084,62 0C. Diamond burn on heating in air; under pressure of a inert gas the melting point may be approx. 4 000 0C. This depends on the type of glass; also glass hasn't a true melting point. Glasses are melted over 400 0C.
What is the melting point of diamonds?
At normal atmospheric pressure, the melting point of diamond is 3550 degrees celsius (6422 F).3823 Kelvin3550 Celsius6422 Fahrenheit3820 degrees Kelvin
How is melting point of silicon dioxide lower than melting point of diamond?
Smell
Why is the melting point of diamond higher than sulfur?
diamond has a 3 dimensional frame work of carbon and hence has high melting point
What is the melting point of diamond at an atmospheric pressure of 97200 millibars?
If my math is correct, you're asking for the melting point at a distance of about six miles above sea level -- which means you're probably air-born. The melting point of diamond is 3,820 Kelvin. So assuming you have the gear that can produce that temperature at that altitude, you could melt a diamond. Given the altitude, the Kelvin reading might be a little lower.
When pressure on a piece ice is increased its melting point will be?
The melting point of ice actually DECREASES with an INCREASE in pressure.
Why is diamond a unusual non metal?
non-metals have lower density, melting and boiling point but diamond has higher density, melting and boiling point.
What will be the melting point ice if it is kept under high pressure?
The melting point is not changed by pressure. It is still over 32O
Will magma melt diamond?
a diamond's melting point is so highmagma will not melt it
Is freezing boiling or melting most affected by pressure?
Boiling point is most affected by pressure. Note that freezing point and melting point are in fact the same.
What is high melting point?
The melting point of a solid is the temperature at which it changes STATE from SOLID to LIQUID. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends (usually slightly) on pressure and is usually specified at STANDARDatmospheric pressure.
