What are some of the approximations made when calculating the vibrational component of the molecular partition function? A. In the q expression the summation is replaced with an integral. The error in doing this is reduced the heavier and bulkier the molecule. B. In the q expression the summation is replaced with an integral. The error in doing this is reduced the smaller the mass of the molecule. C. The energy levels of the particle in a box are used (after solving the Schrdinger equation for this system) D. The energy levels of the rigid rotor are used (after solving the Schrdinger equation for this system) E. The energy levels of the harmonic oscillator are used (after solving the Schrdinger equation for this system) F. The model of the rigid rotor is assumed to separate translations and rotations G. The model of the rigid rotor is assumed to separate vibrations and rotations H. Vibrational modes are assumed to be uncoupled with one another I. Vibrational modes are assumed to be coupled with one another a. A,C b. E,H c. B,D d. None of these statements is correct e. E,G,H f. A,G Clear my choice