Скачать или смотреть Thermodynamics: Using a Hypothetical Process to Determine Equilibrium Pressure

A walk through of an example problem using a hypothetical process to determine equilibrium pressure:

Tired of studying thermo, you come up with the idea of becoming rich by manufacturing diamond from graphite. To do this process at 25°C requires increasing the pressure until graphite and diamond are in equilibrium. The following data are available at 25°C:

Dg125°C, 1 atm2 5 gdiamond 2 ggraphite 5 2866 3J/mol4
rdiamond 5 3.51 3g/cm34
rgraphite 5 2.26 3g/cm34

Estimate the pressure at which these two forms of carbon are in equilibrium at 25°C.

Purdue University Omega Chi Epsilon

Text: Engineering and Chemical Thermodynamics by Koretsky 2nd edition

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Tired of studying thermo, you come up with the idea of becoming rich by manufacturing diamond from graphite. To do this process at 25°C requires increasing the pressure until graphite and diamond are in equilibrium. The following data are available at 25°C:

Dg125°C, 1 atm2 5 gdiamond 2 ggraphite 5 2866 3J/mol4
rdiamond 5 3.51 3g/cm34
rgraphite 5 2.26 3g/cm34

Estimate the pressure at which these two forms of carbon are in equilibrium at 25°C.

Tired of studying thermo, you come up with the idea of becoming rich by manufacturing diamond from graphite. To do this process at 25°C requires increasing the pressure until graphite and diamond are in equilibrium. The following data are available at 25°C:

Dg125°C, 1 atm2 5 gdiamond 2 ggraphite 5 2866 3J/mol4
rdiamond 5 3.51 3g/cm34
rgraphite 5 2.26 3g/cm34

Estimate the pressure at which these two forms of carbon are in equilibrium at 25°C.