The Vibrational Energy of a Carbon Monoxide, CO, Molecule in Its

Multiple Choice

The vibrational energy of a carbon monoxide, CO, molecule in its first excited vibrational state is 3.42  10^-20 J. Assuming that a carbon monoxide molecule may be treated as a harmonic oscillator with a force constant of k = 2170 N m^-1, calculate the classical amplitude of vibration for the molecule in this state.

A) 5.61 nm
B) 5.61 pm
C) 5.61 Å
D) 56.1 nm