We can use the following equation to solve for ** ΔG˚_{rxn}**:

$\overline{){\mathbf{\Delta G}}{{\mathbf{\xb0}}}_{{\mathbf{rxn}}}{\mathbf{=}}{\mathbf{\Delta H}}{{\mathbf{\xb0}}}_{{\mathbf{rxn}}}{\mathbf{-}}{\mathbf{T\Delta S}}{{\mathbf{\xb0}}}_{{\mathbf{rxn}}}}$

Calculate the change in Gibbs free energy for each of the following sets of Δ*H*_{rxn}, Δ*S*_{rxn}, and *T*.

**Part C**

Δ*H*°_{rxn}= 88 kJ , Δ*S*_{rxn}=− 152 J/K , *T*= 298 K

Express your answer using two significant figures.

**Part G**

Predict whether or not the reaction in part C will be spontaneous at the temperature indicated.

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