Diamond and Graphite

Chemistry Level pending

Carbon is capable of forming many allotropes due to its valency. The above is a simplified phase diagram of carbon. Which of following explanations is correct?

a) At \(25\)°C and \(1\) atm, graphite is the most stable phase of carbon.

b) If we put more and more pressure on graphite while maintaining the temperature at \(25\)°C, then graphite can become a diamond.

c) If we increase the temperature while maintaining the pressure below T in the diagram, then graphite sublimates into vapor.


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