write the number of degrees of freedom of a diatomic gas molecule as 5 degrees of freedom.
write the number of degrees of freedom of a diatomic gas molecule as 5 degrees of freedom.
write the number of degrees of freedom of a diatomic gas molecule?
5 degrees of freedom
the heat capacity ratio () for an ideal gas can be related to the degrees of freedom () of a molecule by









































thus we observe that for a monatomic gas, with 3 degrees of freedom:









































while for a diatomic gas, with 5 degrees of freedom (at room temperature: 3 translational and 2 rotational degrees of freedom; the vibrational degree of freedom is not involved, except at high temperatures):
heat capacity ratio
in three-dimensional space, three degrees of freedom are associated with the movement of a particle. a diatomic gas molecule has 6 degrees of freedom. this set may be decomposed in terms of translations, rotations, and vibrations of the molecule. the center of mass motion of the entire molecule accounts for 3 degrees of freedom. in addition, the molecule has two rotational degrees of motion and one vibrational mode. the rotations occur around the two axes perpendicular to the line between the two atoms. the rotation around the atom–atom bond is not a physical rotation. this yields, for a diatomic molecule, a decomposition of:
degrees of freedom (physics and chemistry)