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H2 (g) + CO2 (g) ↔ H2O(g) + CO(g). ΔH° = +41.0 kJ b. 2 SO2 (g) + O2 (g) ↔ 2 SO3 (g). ΔH° = -198 kJ. 6. For each of the equilibria in Question 5 will the ... Aug 1, 2000 ... The hydration rate constant of sulfur trioxide to sulfuric acid is shown to depend sensitively on water vapor pressure. In the 1:1. SO3-H2O ... In the atmosphere, this hydration reaction is regarded as the main source of gas-phase sulfuric acid. For the reaction SO3 + H2O →. 10. H2SO4, the pre-reactive ... ... SO3, and 80 for both the collision of a water molecule or FA with SO3-H2O. The collision of FA with SO3-H2O led to the formation of sulfuric acid in 5 % of ... (SO3, H2O, P2O5, Cl, etc.). Adding the bulk values of these other constituents as measured by APXS or SAM does not bring the total to 100% (Table 1) ... SO3 mole fraction 0.38. Using van der Waals' concepts for binary liquid mixtures and assigning values to the van. ... SO3-H2O + FA → SA. + FA possesses very high rate constant and acts as one of the major pathways for SA production in the atmosphere.[5b]. Considering the ... SO3(-)-].(H2O)n; (c) water aggregates associated with H3O+ ions [H3O+.(H2O)n]; and (d) low associated water species ... Apr 1, 2010 ... ... SO3)+, and (MH-H2O-SO3)+ ions. Because no comparable H2O or combined H2O+SO3 losses were seen in the CID spectra of the 11a-hydroxysulfate ... Sep 12, 2001 ... It is used equation: Dew point = 20log (SO3%) + (2Xmoisture + 184) where moisture is H2O% in flue gas.