Gibbs Free Energy: SpontaneityElemental carbon usually exists in one of two forms: graphite or diamond. It is generally believed that diamonds last forever. Here are the standard enthalpy (DeltaH) and entropy (DeltaS) of formation values for diamond and graphite.Substance Delta H_ f}}^\circ ~(kJ/mol) Delta S_ f}}^\circ ~(J/mol\cdot K)C_ graphite} 0 5.740 C_ diamond} 1.897 2.38Part AWhat is the standard Gibbs free energy for the transformation of diamond to graphite at 298 K?C_{diamond} \rightarrow C_{graphite}
Gibbs Free Energy: SpontaneityElemental carbon usually exists in one of two forms: graphite or diamond. It is generally believed that diamonds last forever. Here are the standard enthalpy (DeltaH) and entropy (DeltaS) of formation values for diamond and graphite.Substance Delta H_ f}}^\circ ~(kJ/mol) Delta S_ f}}^\circ ~(J/mol\cdot K)C_ graphite} 0 5.740 C_ diamond} 1.897 2.38Part AWhat is the standard Gibbs free energy for the transformation of diamond to graphite at 298 K?C_{diamond} \rightarrow C_{graphite}
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Related questions
Elemental carbon usually exists in one of two forms: graphite or diamond. It is generally believed that diamonds last forever. The table shows the standard enthalpy of formation (?H?f) and the standard molar entropy (S?) values for diamond and graphite.
| Substance | ?H?f (kJ/mol) | S? (J/mol?K) |
| Cgraphite | 0 | 5.740 |
| Cdiamond | 1.897 | 2.38 |
What is the standard Gibbs free energy for the transformation of diamond to graphite at 298 K?
Cdiamond?Cgraphite
Express your answer to three significant figures and include the appropriate units.
