The Doppler-limited vibration-rotation absorption spectrum of HBr in the near infrared wavelength region was measured using a GaAs semiconductor laser and a ring-type titanium sapphire laser. About 100 lines in the v = 3 <-- 0, 5 <-- 0, and 6 <-- 0 bands were assigned and 16 Dunham coefficients Y10-
Thermodynamics of helium in the rotating frame between 3.0 and 6.0 K
β Scribed by L.E. Haseler; R.G. Scurlock; D.B. Utton
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 374 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0011-2275
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β¦ Synopsis
Experiments on helium with a large diameter (1 m) rotating cryostat at speeds up to 50 Hz are described. Radial temperature distributions have been measured with axial pressures ranging from 25 x 103 to 2.0 x 10 s Nm -2. It is concluded that the temperature distributions are isentropic to within 30 mK (ie the uncertainties in the published equation of state) in a radial duct of diameter 18 mm.
π SIMILAR VOLUMES
The rotational spectra of the HSS and DSS radicals were studied in selected regions between 331 and 883 GHz. The radicals were produced by discharging a gaseous mixture of hydrogen (or deuterium) and hydrogen sulfide in the cell. The observation of the b-type Q-branch and R-branch lines with K a Ο 2
Molar enthalpies of dilution dil H m of Na 2 CO 3 (aq) were measured from molality m = 1.45 mol β’ kg -1 to m = 0.008 mol β’ kg -1 at seven temperatures from T = 298 K to T = 523 K at the pressure p = 7 MPa, and at four temperatures from T = 371 K to T = 523 K at the pressure p = 40 MPa. Molar enthalp
Measurements of ( p, Ο, T ) for {xCH 3 OH + (1x)H 2 O} with x = (1.0000 and 0.4993) at specified temperatures and pressures in the compressed liquid phase were carried out with a metal-bellows variable volumometer along six isotherms between T = 320 K and T = 420 K at pressures from the bubble point