Recall the following equations to solve the questions:
For part A:
2Ca(s)+O2(g) → 2CaO(s)
We are given:
ΔH°rxn= -1269.8 kJ;
ΔS°rxn= = 0.3646 kJ/K
T = 24 °C + 273.15 = 297.15 K
Part A. 2Ca(s)+O2(g) → 2CaO(s) ΔH°rxn= -1269.8 kJ; ΔS°rxn= -364.6 J/K.
Calculate the free energy change for the reaction at 24 °C.
Part B. Calculate ΔS°rxn for the balanced chemical equation: H2S(g)+2 O2(g)→H2O(g)+SO2(g)
Part C. 2 CO(g)+2 NO(g)→2 CO2(g)+N2(g). Use standard free energies of formation to determine ΔG°rxn for this reaction at 25°C.
Part D. Use data from Appendix IIB to calculate the equilibrium constants at 25 °C for this reaction: N2(g)+3 H2(g)⇌2 NH3(g)
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