Question

For a diatomic molecule with a rotational constant B=1.656x10¹¹ s^-1 and a reduced mass µ=4.00x10^-27 kg, the equilibrium bond length, R_e, can be calculated to be (in Å or 10^-10 m):

1.28

2.26

3.39

1.13

2.56

If two molecules A-B and C-D have the same force constant and the reduced mass of A-B is 4 times that of C-D, the vibrational frequency of C-D should be __X__time that of A-B:

1/2

1

1/4

2

4

Answer 1