32. For an ideal diatomic gas (let us treat them as non-rigid rotators), there are Nmolecules confined to a two-dimensional space of area A, as shown in the figurebelow. These diatomic molecules can only rotate in the plane (i.e., with angularvelocity perpendicular to the plane), but are allowed to translate and vibrate in thetwo-dimensional plane. In thermal equilibrium at a temperature T (assuming that Tis high enough so that the gas can be handled classically),which of the following statements is true?

(A)The internal energy of the ideal diatomic gas is 2NkBT.
(B)The internal energy of the ideal diatomic gas is 5NkBT/2.
(C)The total rotational kinetic energy is greater than the total translational energy.
(D)The total rotational kinetic energy is greater than the total vibrational energy.
(E)The speed distribution is the same Maxwell-Boltzmann distribution for the ideal monatomic gas in three dimensions.