The standard free energy change (∆Gº') is the energy released when the products are created from the reactants. The (∆Gº') at 298 K is -5.40kJ.
<h3>What is standard free energy change?</h3>
The standard free energy change is given by the sum of the standard free energies of the products subtracted from the sum of the standard free energies of the reactants, given as,
ΔG = ∑nΔG°products − ∑mΔG°reactants
Given,
ΔG°(NO₂) = 51.84 kJ/mol
ΔG°(N₂O₄) = 98.28 kJ/mol
Substituting values:
ΔG = ∑nΔG°products − ∑mΔG°reactants
= ΔG°(N₂O₄) − 2ΔG°(NO₂)
= 98.28 − 2(51.84)
= - 5.4
Therefore, -5.40 kJ is the standard free energy.
Learn more about standard free energy here:
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