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The phase diagram for carbon indicates the extreme conditions that are needed to form diamonds from graphite. At 2000 K, what is the minimum pressure needed before graphite changes into diamond? Carbon phase diagram P = atm 10 Solid I (diamond) 10 Liquid 10- 10- Solid II (graphite) 10 Gas 10- 1- 1000 2000 3000 4000 5000 6000 T(K) What is the minimum temperature at which liquid carbon can exist at pressures below 10 atm? T. K Question Source Atkins 7e Chemical Principles Publish "hat is the minimum temperature at which liquid carbon can exist at pressures below 10ʻ atm? K Vhat is the temperature and pressure of the diamond, liquid, and graphite triple point?

The phase diagram for carbon indicates the extreme conditions that are needed to form diamonds from graphite. At 2000 K, what is the minimum pressure needed before graphite changes into diamond? Carbon phase diagram P = atm 10 Solid I (diamond) 10 Liquid 10- 10- Solid II (graphite) 10 Gas 10- 1- 1000 2000 3000 4000 5000 6000 T(K) What is the minimum temperature at which liquid carbon can exist at pressures below 10 atm? T. K Question Source Atkins 7e Chemical Principles Publish "hat is the minimum temperature at which liquid carbon can exist at pressures below 10ʻ atm? K Vhat is the temperature and pressure of the diamond, liquid, and graphite triple point?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Chemistry The phase diagram for carbon indicates the extreme conditions that are needed to form diamonds from graphite. At 2000 K, what is the minimum pressure needed before graphite changes into diamond? Carbon phase diagram 10 P = atm Solid I (diamond) 10 Liquid 10 10 Solid II (graphite) 10 Gas 10- 1- 1000 2000 3000 4000 5000 6000 T(K) What is the minimum temperature at which liquid carbon can exist at pressures below 10 atm? Question Source Atkins Te Chemical Principles| Publisher WH What is the minimum temperature at which liquid carbon can exist at pressures below 10' atm? T = K What is the temperature and pressure of the diamond, liquid, and graphite triple point? T = K atm Why is it that people can wear diamonds under normal conditions without having to keep them under high pressure? O A thin layer of oxidized carbon forms on the outenlayer of the diamond structure, preventing the conversion of diamond to graphite. Diamonds are thermodynamically unstable, but appear to be stable because the rate of conversion to graphite is very slow. Diamond is the stable form of carbon under normal conditions. O A small amount of the diamond does convert to graphite; however, the equilibrium greatly favors the reformation of diamond. (an)d
Transcribed Image Text:Chemistry The phase diagram for carbon indicates the extreme conditions that are needed to form diamonds from graphite. At 2000 K, what is the minimum pressure needed before graphite changes into diamond? Carbon phase diagram 10 P = atm Solid I (diamond) 10 Liquid 10 10 Solid II (graphite) 10 Gas 10- 1- 1000 2000 3000 4000 5000 6000 T(K) What is the minimum temperature at which liquid carbon can exist at pressures below 10 atm? Question Source Atkins Te Chemical Principles| Publisher WH What is the minimum temperature at which liquid carbon can exist at pressures below 10' atm? T = K What is the temperature and pressure of the diamond, liquid, and graphite triple point? T = K atm Why is it that people can wear diamonds under normal conditions without having to keep them under high pressure? O A thin layer of oxidized carbon forms on the outenlayer of the diamond structure, preventing the conversion of diamond to graphite. Diamonds are thermodynamically unstable, but appear to be stable because the rate of conversion to graphite is very slow. Diamond is the stable form of carbon under normal conditions. O A small amount of the diamond does convert to graphite; however, the equilibrium greatly favors the reformation of diamond. (an)d
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