79 A "H" Br. molecule, whose bond length and force constant are r = 1.410 x 10^-10 m and k = 385 N/m, is in the state corresponding to the quantum numbers J = 7 (rotational) and n = 0.(vibrational). - S. 1. The period of vibration of this molecule is T= 2. The rotational energy of this molecule is Erot=. J. 3.24 x 10-1 -19 3.51 x 10-22 4.43 x 10-16 32.94 2.31 x 10-21 672.00 2.60 x 10-17 4.17 x 10-15 3.75 x 1018 3.24 x 10-19 9.48 x 10-21 3.53 x 10-12 1.30 x 10-14