Answer to Question #112002 in General Chemistry for AChemStudent

Question

Use the standard free energy data in the Standard State Thermodynamic Data table to determine the free energy change for each of the following reactions (in kJ/mol), which are run under standard state conditions and 25°C.

(a) C(graphite) + O2(g) → CO2(g)
ΔG°= ??? kJ/mol --> Do not know how to figure this???

(b) N2O(g) + O2(g) → N2O3(g)
ΔG°= ??? kJ/mol --> Do not know how to figure this???

(c)
PCl3(l) + Cl2(g) → PCl5(g)
ΔG°= ??? kJ/mol --> Do not know how to figure this??? Need answer and explanation.
spontaneous

(d)Cr2O3(s) + 3 CO(g) → 2 Cr(s) + 3 CO2(g)
ΔG°= ??? kJ/mol --> Do not know how to figure this???

(f) LiI · 2 H2O(s) → LiI(s) + 2 H2O(g)
For this part only, use the following data.
LiI · 2 H2O(s) = ΔG⁰298 = −780.3 kJ/mol
LiI(s) = ΔG⁰298 = −270.3 kJ/mol
H2O(g)= ΔG⁰298 = −228.6 kJ/mol
ΔG°= ??? kJ/mol --> Do not know how to figure this???

Answer 1

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