STUDY OF ROCKET ENGINE EXHAUST PRODUCTS.
Abstract
From a study of the reversible reaction 2Al (1) + AlF3 (g) yields 3A1F(g) between 1199 and 1348K by means of the transpiration technique an increment Hr 1273K of 93.35 = 1.78 kcal and an increment Sr 1273K of 62.15 = 1.37 cal/ deg/mole were obtained. Extrapolation to 298K by means of published thermal functions coupled with the use of published thermodynamic data for Al and AlF3 yields values of -60.65 = 0.59 kcal/mole and 51.93 = 0.46 cal/deg/mole for the increment Hf 298 and S 298 AlF(g) respectively. The increment H(o) sub f 298 for AlCl(g) of -13.5 = 0.4 kcal/ mole is reported based on the first experimental second law measurements for the reaction 2 Al(1) + AlCl3(g) = 3 AlCl(g) by a Molecular Flow Effusion study over the temperature range 930K to 1034K. The first experimental value for S(o) 298 of AlCl3(g) of 82.5 = 1.5 cal/deg/mole is also derived from these measurements. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 31, 1965
- Accession Number
- AD0612892