It was stated that at room temperature (25°C) the majority of molecules are in the ground vibrational energy level (v=0).
(a) Use the Boltzmann equation (Equation 8-1) to calculate the excited-state and ground-state population rations for HCI: N (v=1)/N (v=0). The fundamental vibrational frequency of HCI occurs at 2885 cm-1.
(b) Use the results of part (a) to find N (v=2)/N (v=0).