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Use the accompanying phase diagram for carbon to answer the following questions. 

a. How many triple points are in the phase diagram?

b. What phases can coexist at each triple point?

c. What happens if graphite is subjected to very high pressure at room temperature? 

d. If we assume that the density increases with an increase in pressure, which is denser, graphite or diamond? 

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Christian Tuso
Christian TusoLv10
10 Dec 2020
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Related questions

Sulfur exhibits two solid phases, rhombic and monoclinic. Use the accompanying phase diagram for sulfur to answer the following questions. (The phase diagram is not to scale.)

A. How many triple points are in the phase diagram?

B. What phases are in equilibrium in each of the triple points?

C. What is the stable phase at 1 atm and 100oC?

D. What are the normal melting point and normal boiling point of sulfur?

E. Which is the densest phase?

F. At a pressure of 1.0 x 10-5 atm, can rhombic sulfur sublime?

G. What phase changes occur when the pressure on a sample of sulfur at 100oC is increased from 1.0 x 10-8 atm to 1500 atm?

Sulfur exhibits two solid phases, rhombic and monoclinic. Use the accompanying phase diagram for sulfur to answer the following questions. (The phase diagram is not to scale.)

a. How many triple points are in the phase diagram?

b. What phases are in equilibrium at each of the triple points?

c. What is the stable phase at 1 atm and 100.°C?

d. What are the normal melting point and the normal boiling point of sulfur?

e. Which is the densest phase?

f. At a pressure of 1.0×10-5 atm, can rhombic sulfur sublime?

g. What phase changes occur when the pressure on a sample of sulfur at 100.°C is increased from 1.0×10-8 atm to 1500 atm?

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