Heat of Formation and Entropy of (BOCl)3
- 1 July 1963
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 39 (1) , 158-160
- https://doi.org/10.1063/1.1733994
Abstract
An experimental study of the equilibrium B2O3(l)+BCl3(g) = (BOCl)3(g) has been made by the method of transpiration in the temperature range of 536°—825°K. The enthalpy and entropy changes of the reaction in this temperature range were found to be 5.0±0.3 kcal/mole and 3.1±0.5 cal/deg/mole, respectively. The data have been interpreted to yield the heat of formation, ΔH°f695°K = 391.5±0.3 kcal/mole, and entropy, S°695°K = 124.2±0.5 cal/deg/mole, of gaseous (BOCl)3. Partial pressure studies indicate that the quantity of the monomer, BOCl, present in the temperature range under consideration is negligible.Keywords
This publication has 3 references indexed in Scilit:
- Heat of Formation and Entropy of the Trimer of Boron OxyfluorideThe Journal of Chemical Physics, 1962
- The heat of formation and entropy of BOFTransactions of the Faraday Society, 1962
- Vapour equilibria in the B2O3H2O system at elevated temperaturesJournal of Inorganic and Nuclear Chemistry, 1960