Publication | Closed Access
Rotational Relaxation in Nitrogen, Oxygen, and Air
97
Citations
0
References
1959
Year
Relaxation ProcessAeroacousticsChemical KineticsEngineeringAtmospheric AcousticMagnetic ResonanceRotational Collision NumbersPhysical AcousticDry AirNoiseKinetics (Physics)Acoustical EngineeringThermodynamicsSound PropagationInstrumentationMolecular KineticsVarious PressuresPhysicsPhysical ChemistryNuclear AstrophysicsNatural SciencesRotational Relaxation
The speed and attenuation of sound at 11 Mc were measured in N2, O2, and dry air at various pressures between atmospheric and a few mm Hg. The rotational collision numbers were found to be: for N2, 5.26±0.05; for O2, 4.09±0.08; for air, 4.82±0.18.