Heat Capacity from Spectroscopic Data

KQueeney's Values

From Infrared  (IR) spectroscopy  K. Queeney '92 found the following fundamental frequencies of the three normal modes of

Some parameters

We define the following function of temperature

From Statistical Mechanics we know that the contribution to the heat capacity due to the vibrational modes is given by:

Now, the heat capacity at two different temperatures

For sulfur dioxide the total heat capacity is given by:

Finally the heat capacity at two different temperatures is

Problem 2. - Plot the specific heat from 10 K to 2000 K.