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 & Chemical Reactivity
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ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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Chapter11: Intermolecular Forces And Liquids
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Problem 38GQ: The following data are the equilibrium vapor pressure of limonene, C10H16, at various temperatures....
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When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Question
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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