Problem: Calculate the change in Gibbs free energy for each of the following sets of ΔH°rxn, ΔS°rxn, and T.Part 1ΔH°rxn= 88 kJ , ΔS°rxn= 154 J/K , T= 292 KExpress your answer using two significant figures.Part 2ΔH°rxn= 88 kJ , ΔS°rxn= 154 J/K , T= 755 KExpress your answer using two significant figures.Part 3ΔH°rxn= 88 kJ , ΔS°rxn=− 154 J/K , T= 292 KExpress your answer using two significant figures.Part 4ΔH°rxn=− 88 kJ , ΔS°rxn= 154 J/K , T= 408 KExpress your answer using two significant figures.

FREE Expert Solution

We're being asked to calculate the change in Gibbs free energy for each of the following sets of ΔH°rxn, ΔS°rxn, and T.

We can calculate the change in Gibbs free energy (ΔG°rxn) using the following equation:

$\overline{){\mathbf{∆}}{\mathbf{G}}{{\mathbf{°}}}_{{\mathbf{rxn}}}{\mathbf{=}}{\mathbf{∆}}{\mathbf{H}}{{\mathbf{°}}}_{{\mathbf{rxn}}}{\mathbf{-}}{\mathbf{T}}{\mathbf{∆}}{\mathbf{S}}{{\mathbf{°}}}_{{\mathbf{rxn}}}}$

Note that we need to convert J/K into kJ/K since we need ΔG˚ in kJ/mol.

Part 1. ΔH°rxn= 88 kJ , ΔS°rxn= 154 J/K , T= 292 K

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Problem Details

Calculate the change in Gibbs free energy for each of the following sets of ΔH°rxn, ΔS°rxn, and T.

Part 1

ΔH°rxn= 88 kJ , ΔS°rxn= 154 J/K , T= 292 K

Part 2

ΔH°rxn= 88 kJ , ΔS°rxn= 154 J/K , T= 755 K

Part 3

ΔH°rxn= 88 kJ , ΔS°rxn=− 154 J/K , T= 292 K