# Problem: Calculate ΔG°rxn at 298 K for the following reaction: I2(g)+Cl2(g)⇌2ICl(g), Kp=81.9Express the free energy of the reaction in kilojoules to three significant figures.

###### FREE Expert Solution

$\overline{){\mathbf{\Delta G}}{{\mathbf{°}}}_{{\mathbf{rxn}}}{\mathbf{=}}{\mathbf{-}}{\mathbf{RTlnK}}}$

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###### Problem Details

Calculate ΔG°rxn at 298 K for the following reaction: I2(g)+Cl2(g)⇌2ICl(g), Kp=81.9
Express the free energy of the reaction in kilojoules to three significant figures.