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In this lesson, we will learn how to explain the effects of pressure and temperature on phase transitions and predict the features of a phase diagram.
Consider the phase transformation process
. The value of
for this process at 1 bar pressure and a temperature of 298 K has a value of 2.900 kJ/mol, and the value of
for the process under these same pressure and temperature conditions has a value of
J/K⋅mol. If the temperature increased from 298 K to
K, but the pressure remained constant at 1 bar, would the thermodynamic stability of graphite relative to diamond increase, decrease or stay the same?
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