Problem: 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. What can be said about the spontaneity of this reaction? Cdiamond → Cgraphite a) The reverse reaction is spontaneous at 298 K. b) The forward reaction is spontaneous at 298 K. c) The reaction is at equilibrium at 298 K.

FREE Expert Solution

Cdiamond → Cgraphite 

ΔG°rxn=ΔH°rxn-TΔS°rxn


ΔH°rxn=ΔH°f, prod-ΔH°f, react

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Problem Details

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. 

What can be said about the spontaneity of this reaction? 

Cdiamond → Cgraphite 

a) The reverse reaction is spontaneous at 298 K. 

b) The forward reaction is spontaneous at 298 K. 

c) The reaction is at equilibrium at 298 K.