Question

Use this information to calculate es002-1.jpgGrxn at 298 K.

es002-2.jpg

es002-3.jpg =
kJ

Answer 1

I don't have the images (es002-1.jpg, es002-2.jpg, es002-3.jpg) you referenced. I can compute ΔG°rxn at 298 K as soon as you paste the numbers or upload the images. Meanwhile, here are the formulas and the steps so you can see what I'll do:

1. If you have ΔH°rxn and ΔS°rxn directly:
- ΔG°rxn(298 K) = ΔH°rxn − T·ΔS°rxn
- Make sure units match: convert ΔS° (J·mol−1·K−1) to kJ·mol−1·K−1 by dividing by 1000, or convert ΔH° to J·mol−1. Example unit-consistent form:
ΔG° (kJ·mol−1) = ΔH° (kJ·mol−1) − 298 K × [ΔS° (J·mol−1·K−1) / 1000]

2. If you have standard formation data (ΔHf° and S° for each species) but not ΔH°rxn and ΔS°rxn:
- Calculate reaction values by summing products minus reactants:
ΔH°rxn = Σ n·ΔHf°(products) − Σ n·ΔHf°(reactants)
ΔS°rxn = Σ n·S°(products) − Σ n·S°(reactants)
- Then use step 1 to get ΔG°rxn.

3. If you have standard Gibbs energies of formation ΔGf° for each species:
- Directly: ΔG°rxn = Σ n·ΔGf°(products) − Σ n·ΔGf°(reactants)

4. Units & sig figs:
- Report ΔG in kJ (or kJ·mol−1 as appropriate).
- Keep consistent units and round according to given data precision.

If you paste the numeric values from es002-1.jpg and es002-2.jpg (or re-upload the images), I’ll compute ΔG°rxn at 298 K and give the answer in kJ.