6. Please estimate the molecular density for 1 mole ideal gas per cm³ at 1 torr and 300 K?
(A)~3.2×10¹⁴
(B) ~3.2×10¹⁵
(C)~3.2×10¹⁶
(D) ~3.2×10¹⁷

7. In terms of energy, 3 GHz is identical to X wavenumber (cm¯¹), What is X?(A) 1 (B) 0.5 (C) 30 (D) 0.1

8. What is the boundary condition for a "particle on a ring" model?(A) ψ(0) = ψ(2π) (B) ψ(0) = ψ(π) (C) ψ(0) = ψ(D) ψ(0) = 0, ψ(2π) = 0

9. The lowest eigenvalue for a H atom is -13.6 eV. Calculate the energy uncertainty if the lifetime in the given state is 1.0 nanosecond? (A) 4.74 μεν (B) 38.1 μεV (C) 0.33 μεV (D) 1.35 μεν

10. The (θ, Φ) is an eigenfunction of, so what is the eigenvalue?(A) 2ħ (B) 2ħ² (C) 6ħ² (D) 4ħ²

11. What kind of symmetry operation is for determination of the minus sign of 3Σg-?(A)συ (B) C∞v (C) S(φ) (D) C2

12. The rate constant for the reaction 2I→ I2 is 7.0x106 m³mol-1s-¹ at296 K and 7.7×106 m³mol-1s-¹ at 303 K. What is Ea (kJ/mol)?(A) 16.5 (B) 35.5 (C) 10.2 (D) 185

13. If the population decay channels of the excited state decay include three channels, such as fluorescence channel (kF = 109 s¯¹), internal conversion channel (kıc = 1012 s¯¹), and intersystem crossing channel (kIsc = 103 s¯¹), what is the observed fluorescence lifetime TF? (A) 1 psec (B) 1msec (C) 1 nsec (D) 1 µsec

14. If we want to acquire a Raman spectrum with a 785 nm laser for exciting a C-H stretching at 3000 cm-¹, what Stokes peak in nanometer (nm) will be appeared in the Raman spectrometer? (A) 985 (B) 1064 (C) 1027 (D) 633

15. At room temperature, which kind of molecular motion has least contribution to the entropy for CH4?(A) Rotation (B) Vibration (C) Translation (D) Electronic

1. Aside from maintaining the integrity of its hereditary material, the most important general metabolic concern of a cell is: (A) keeping its glucose levels high. (B) maintaining a constant supply and concentration of ATP. (C) preserving its ability to carry out oxidative phosphorylation. (D) protecting its enzymes from rapid degradation. (E) running all its major metabolic pathways at maximum efficiency.

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