Redetermination of the thermodynamics of the reactions (NH/sub 3/)/sub n/. SO/sub 2/(s) in equilibrium nNH/sub 3/(g) + SO/sub 2/ (g)

Journal Article · Thu Apr 25 04:00:00 EST 1985 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100255a029· OSTI ID:5160102

Landreth, R; de Pena, R G; Heicklen, J

The reactions between NH/sub 3/ and SO/sub 2/ have been reexamined at temperatures between 5 and 45/sup 0/C. Previous values of the standard enthalpies and entropies of decomposition of the products have now been corrected. The reactions are (NH/sub 3/)/sub 2/.SO/sub 2/(s) in equilibrium 2NH/sub 3/(g) + SO/sub 2/(g) and NH/sub 3/.SO/sub 2/(s) in equilibrium NH/sub 3/(g) + SO/sub 2/(g). The thermodynamic parameters are ..delta..H/sub 1/ approx. = 33 kcal/mol/ ..delta..S/sub 1/ approx. = 87 cal/(mol K); ..delta..H/sub 2/ = 18.4 kcal/mol; ..delta..S/sub 2/ = 45.1 cal/(mol K). The uncertainty in the parameters is +/-10% for reaction 2 and at least +/-20% for reaction 1.

• Research Organization: Pennsylvania State Univ., University Park
• OSTI ID: 5160102
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 89:9; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
AMMONIA
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
DATA
ENTHALPY
ENTROPY
EXPERIMENTAL DATA
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
MEDIUM TEMPERATURE
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMODYNAMIC PROPERTIES
YIELDS