Accession Number : AD0289206

Title :   STUDY OF ROCKET ENGINE EXHAUST PRODUCTS

Corporate Author : ROCKET POWER INC PASADENA CALIF

Personal Author(s) : GREENBAUM,M.A. ; PETERSEN,H.

Report Date : 31 AUG 1962

Pagination or Media Count : 1

Abstract : The reaction BeO(s) + 2HF(g) yields BeF2(g) + H2O was employed to obtain values for the delta H sub f(298) and S(298) of BeF2(g). The experimentally determined values for delta H sub r and delta S sub r for the above reactions over the temperature range 943-1243 K are 20.5 ! 1.7 kcal and 6.0 ! 0.3 cal/deg/mole respectively. From these values and available thermodynamic data onALL THE SPECIES OF INTEREST, THE Second Law values for delta H sub f(298) and S(298) of BeF2(g) were found to be -191.3 ! 2.0 kcal/mole and 52.4 ! 0.3 cal/deg/mole respectively. The Third Law delta H sub f(298) for BeF2(g) was determined to be -191.2 ! 0.4 kcal/mole. (Author)

Descriptors :   *BERYLLIUM COMPOUNDS, *SOLID ROCKET PROPELLANTS, CHEMICAL EQUILIBRIUM, DETERMINATION, ENTHALPY, ENTROPY, FLUORIDES, GASES, HEAT OF FORMATION, OXIDES, TEST EQUIPMENT, THERMOCHEMISTRY, THERMODYNAMICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE