F polyatomic: CV : ER, where F is the degree of freedom. This is from the extra 2 or 3 contributions to the internal energy from rotations. Because Q = AEim when the volume is constant, the change in internal energy can always be written: AEmt = nCVAT. Hence, using these, let's now calculate the individual values, C02 has a triatomic structures in its molecule. It also has a liner shape and hence, has two rotational degrees of freedom. Hence, the total degree of freedom is 5 (3 directional and 2 rotational.) The molar heat capacity of C02 is given by, = R = 20.79]/mol Vcoz 2 C Measured CV of C02 is given as 28.46 2 28.46 20.79 2 027 H e n C e 3 CVvibrational 2 8 4:6 what is the equation for specific heat capacity of the polyatomic molecules H20 (nonlinear), CO2 (linear), and CH4 (tetrahedral) using degrees of freedom for each molecule. use translational, rotational, vibrational, and electronic degrees of freedom