The oxidation of SO2 is to be carried out over a solid platinum catalyst in a packed bed reactor. As with almost all gas-solid catalytic reactions, the rate law is expressed in terms of partial pressures instead of concentrations. The rate law is found experimentally to be: −rSO2 ′ = k ൤PSO2ඥPO2 − PSO2 Kp ൨ ൫1 + ඥPO2 KO2 + PSO2 KSO2 ൯ 2 , mo SO2 oxidized(h −1 )(g catayst) −1 Where Pi (atm) is the partial pressure of species i. the reaction is to be carried out isothermally at 400 °C. At this temperature, the rate constant k, the adsorption constants for O2 (KO2 ) and SO2 (KSO2 ), are the pressure equilibrium constant (Kp) where found experimentally to be: k = 9.7 mol SO2/atm3/2/h/g-cat, KO2 = 38.5 atm-1 , KSO2 = 42.5atm-1 O2 and Kp = 930 atm-1/2 The total pressure is 14.7 atm. The inlet is a mixture of 28% SO2 and 72% air by mol. There is no pressure drop. Using Polymath (or Matlab), plot Fao −ra vs. W, for W ranging from W = 0 to 1000 g.

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

Nconcentration refers to the molar concentration of an ion in solution. it may be identical to, or greater or less than, the molar concentration of the compound containing the ion that was used to make the solution. for soluble salts, the molarity of a particular ion is equal to the molarity of that compound times the subscript for that ion. for example, 1 m of alcl3 is 1 m in al3+ and 3 m in cl−. 1 m of (nh4)2so4 is 2 m in nh4+ and 1 m in so42−. part a what is the concentration of k+ in 0.15 m of k2s? view available hint(s) nothing m m part b if cacl2 is dissolved in water, what can be said about the concentration of the ca2+ ion? view available hint(s) if is dissolved in water, what can be said about the concentration of the ion? it has the same concentration as the cl− ion. its concentration is half that of the cl− ion. its concentration is twice that of the cl− ion. its concentration is one-third that of the cl− ion. part c a scientist wants to make a solution of tribasic sodium phosphate, na3po4, for a laboratory experiment. how many grams of na3po4 will be needed to produce 550 ml of a solution that has a concentration of na+ ions of 0.700 m ? express your answer numerically in grams. view available hint(s) mass of na3po4 n a 3 p o 4 = nothing g provide feedback

Why is the melting of ice a physical change ?