9. Which function is not acceptable as an one quantum-mechanical wavefunction on (−∞, ∞)? (A) ψ(x) = Ae⁻|x| (B) ψ(x) = Asin(πx) e⁻x² (C) ψ(x) = A (D) ψ(x) = Ae+x² (E) ψ(x) = A e⁻x²/2

2. For a reaction at constant pressure, the standard Gibbs energies at two temperatures are: ΔrG°(298K) = −12.0 kJ mol⁻¹, ΔrG°(348K) = −5.0 kJ mol⁻¹. Using the Gibbs-Helmholtz equation:what can be concluded about the sign of ΔrH°? (assuming that ΔrH° does not depend on T) (A) ΔrH° = 0 (B) ΔrH° ＞ 0 (endothermic) and ΔrH° is around +54 kJ mol⁻¹ (C) ΔrH° ＜ 0 (exothermic) (D) Cannot be inferred from ΔrG°(T) (E) ΔrH° ＞ 0 (endothermic) and ΔrH° is around +5.4 kJ mol⁻¹

9. Which function is not acceptable as an one quantum-mechanical wavefunction on (−∞, ∞)?
(A) ψ(x) = Ae^⁻|x|
(B) ψ(x) = Asin(πx) e^⁻x²
(C) ψ(x) = A
(D) ψ(x) = Ae^+x²
(E) ψ(x) = A e^⁻x²/2

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