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.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
![▾ Part A
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.
View Available Hint(s)
AGR
Submit
HÅ
Value
Units
Sw ?
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![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 (AH) and the standard molar entropy (S°) values for diamond and graphite.
4
Part A
Substance
Cgraphite
Cdiamond
AH (kJ/mol)
0
1.897
Review | Constants | Periodic Table
S° (J/mol-K)
5.740
2.38](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc528a895-53c0-42e5-9a7b-85707a4595b5%2F58799592-edba-43a2-8c62-ad6c64eea16d%2Fecfq7p_processed.png&w=3840&q=75)
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