Problem: Synthetic diamonds are made under conditions of high temperature (2000 K) and high pressure (1010 Pa; 105 atm) in the presence of catalysts. Carbon’s phase diagram is useful for finding the condition for formation of natural and synthetic diamonds. Along the diamond-graphite line, the two allotropes are in equilibrium.(a) At point A, what is the sign of ΔH for the formation of diamond from graphite? Explain.

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Synthetic diamonds are made under conditions of high temperature (2000 K) and high pressure (1010 Pa; 105 atm) in the presence of catalysts. Carbon’s phase diagram is useful for finding the condition for formation of natural and synthetic diamonds. Along the diamond-graphite line, the two allotropes are in equilibrium.

(a) At point A, what is the sign of ΔH for the formation of diamond from graphite? Explain.

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Our tutors have indicated that to solve this problem you will need to apply the Phase Diagram concept. You can view video lessons to learn Phase Diagram. Or if you need more Phase Diagram practice, you can also practice Phase Diagram practice problems.

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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.