Langmuir-Knudsen equations

Hertz—Knudsen—Langmuir equation, 21 hexammine nickel perchlorate, reaction + H20, 84 holes, 5, 32... 

The maximum flux is given by the Hertz—Knudsen-Langmuir (HKL) equation... 

The applications of thermodynamic functions in thermal decomposition kinetics have been discussed in detail by L vov (89,90). The Hertz-Knudsen-Langmuir equation expresses the rate of monotonic evaporation,./, (which can be measured using TG) by... 

Recently, Turro and co-workers [28] derived the expressions for the bimolecular rate constant for a Langmuir-Rideal type quenching scheme both for a smooth surface. Equation (30.8a), and for a porous solid in the Knudsen regime, where the pore diameter is much less than the gas-phase mean free path. Equation (30.8b). 

MS, mass spectrometry KE, Knudsen effusion L, Langmuir KEMS, Knudsen effusion mass spectrometry. Given only in the form of the Clausius-Clapeyron equation. Run 2 of Habermann and Daane (1964) given in detail. ... 

Because of the very high temperatures and the low pressures involved, no Knudsen studies have been undertaken. Even the Langmuir technique should only be used at the congruent composition. In view of this, the metal pressure over TaC + C is best calculated from thermochemical data. This was done using the following information A/f (298.15 ) = — 34.0 kcal/mole (Huber et al, 1963) a heat of vaporization for the metal of 186.5 kcal/mole (Edwards et al, 1951b) the thermal values in Table 37, the JANAF (1963) tables for and Stull and Sinke (1956) for TU(g). The resulting equation... 

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