Problem: The following equation represents the decomposition of a generic diatomic element in its standard state. 1/2 X2 (g) → X (g) Assume that the standard molar Gibbs energy of formation of X (g) is 5.14 kJ • mol-1 at 2000 K and -51.10 kJ • mol-1 at 3000 K. Determine the value of K (the thermodynamic equilibrium constant) at each temperature. Assuming that ΔH°rxn is independent of temperature, determine the value of ΔH°rxn from these data. 

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The following equation represents the decomposition of a generic diatomic element in its standard state. 

1/2 X2 (g) → X (g) 

Assume that the standard molar Gibbs energy of formation of X (g) is 5.14 kJ • mol-1 at 2000 K and -51.10 kJ • mol-1 at 3000 K. Determine the value of K (the thermodynamic equilibrium constant) at each temperature. 



Assuming that ΔH°rxn is independent of temperature, determine the value of ΔH°rxn from these data. 

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