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Chemistry?
Graph given
Compound Δ𝐺∘f (kJ/mol)
A +387.7
B +550.2
C +402.0
Use the data given here to calculate the values of Δ𝐺∘rxn at 25 ∘ C for the reaction described by the equation
A+B↽−−⇀C
Δ𝐺∘rxn=
kJ
If Δ𝐻∘rxn and Δ𝑆∘rxn are both positive values, what drives the spontaneous reaction and in what direction at standard conditions?
The spontaneous reaction is
entropy-driven to the left.
enthalpy-driven to the left.
entropy-driven to the right.
1 Answer
- hcbiochemLv 75 days ago
Δ𝐺∘rxn = Δ𝐺∘f (products) - Δ𝐺∘f (reactants)
Δ𝐺∘rxn = (402) - (387.7+550.2) = -535.9 kJ/mol
The spontaneous reaction is entropy-driven to the right.