ENTROPIES, HEATS OF SUBLIMATION, ANDD DISSOCIATION ENERGIES OF THE CESIUM HALIDES

Journal Article · Thu Mar 15 04:00:00 EST 1962 · Journal of Chemical Physics (U.S.)

DOI:https://doi.org/10.1063/1.1732792· OSTI ID:4791171

Scheer, M D; Fine, J

The vapor pressures of the crystalline cesium halides were measured in the 700-900 deg K temperature range. The salt vapor effusing from a Knudsen effusion cell was accurately collimated into a molecular beam with a well-defined cross-sectional area. Beam intensities were determined from the positive ion currents produced by dissociation of the halide and ionization to Cs/sup +/ on a tungsten surface at l700 deg K. From the experimental vapor pressures and heats of sublimation, the crystal entropies, dissociation energies, and heats of sublimation at 298 deg K were computed using available spectroscopic and thermal data. (auth)

• Research Organization: National Bureau of Standards, Washington, D.C.
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-016358
• OSTI ID: 4791171
• Journal Information: Journal of Chemical Physics (U.S.), Journal Name: Journal of Chemical Physics (U.S.) Vol. Vol: 36; ISSN JCPSA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BEAMS
CESIUM COMPOUNDS
CHEMISTRY
COMPOUNDS
CRYSTALS
CURRENTS
DECOMPOSITION
DIFFUSION
ENERGY
ENTROPY
EVAPORATION
HIGH TEMPERATURE
IONIZATION
IONS
KNUDSEN EFFUSION
MEASURED VALUES
MOLECULES
PRESSURE
SPECTROSCOPY
SUBLIMATION
TEMPERATURE
THERMODYNAMICS
TUNGSTEN
VAPORS