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In one of the earliest processes used to make sulphuric acid, an ore containing iron (FeS2: iron pyrite) is roasted (burned) with air. The following reactions take place in the furnace (s denotes a solid species, and g a gaseous species): 2 FeS2 (s) + 15/2 O2 -> Fe2O3 (s) + 4 SO3 (g) 2 FeS2 (s) + 11/2 O2 ->Fe2O3 (s) + 4 SO2 (g) (In later stages of the process, not to be considered here, the SO2 is further oxidized to SO3, which is then absorbed in water to produce the H2 SO4 product.) A solid ore containing 82 wt% FeS2 and 18 wt% inerts is fed to the furnace. Dry air is fed in 40% excess of the amount theoretically required to oxidize all of the sulphur in the ore to SO3. A pyrite conversion of 85% is obtained, with 40% of the FeS2 converted to form sulphur dioxide, and the rest forming sulphur trioxide. Two streams leave the roaster: a gas stream containing SO3, SO2, O2, and N2, and a solid stream containing unconverted pyrite, ferric oxide (Fe2 O3), and inerts. a) Draw and completely label a flowsheet of the process (use 100 kg/min of ore as a basis). b) Calculate the rate of Fe2 O3 production (kg/min) in the outlet solid stream, and the total molar flow and composition of the outlet gas stream.
what is the value of Kp for this reaction at this temp? what wold be the effect of an increase in pressure on the amount of SO_3 produced? what wold the effect of an increase in temp on the amount of SO_3 produced? (use relevant data from Appendix..
A 1L steel tank has a safety valve that opens when the internal pressure exceeds 850 torr. The tank is filled with He at 23 oC and 0.991 atm.
If 20.0 g acetylene is allowed to completely react with oxygen , how many g of O2 are reacted? 2C2H2 + 5O2→ 4CO2 + 2H2O
How many moles of CF4 can be produced when 5.00 mol C react with 8.00 mol F2?
A solution is prepared by mixing 50.0 mL of 0.11 M Pb(NO3)2 with 50.0 mL of 1.3 M KCl. Calculate the concentrations of Pb2+ and Cl - at equilibrium. Ksp for PbCl2(s) is 1.6* 10-5.
What is the molarity of a solution prepared by adding 29.3 g of HNO3 to enough water to make 2 L of solution
The decomposition of potassium chlorate yields oxygen gas. If the yield is 95%, how many grams of KClO3 are needed to produce 10.0L of O2 2KClO3(s) -> KCl(s) + 3O2(g)
The normal respiratory rate for a human being is 15.0 breaths per minute. The average volume of air for each breath is 505 cm3 at 20 ? C and 9.95 × 10 4 Pa.
a 40.0 ml volume of ethane gas is heated from 25.0 celcius to 50.0 celcius. If the pressure remains constant, what is the final volume?
Compute the enthalpy change, for this reaction per mole of solution and A calorimeter has water of 22.0 grams at the temperature of fifteen degree celsisu
Copper has a specific heat of 0.092 cal/(g·°C). When 52.7 cal of heat is added to a piece of copper, the temperature increases from 22.4°C to 38.6°C. What is the mass of the piece of copper
At a certain temperature, the Kp for the decomposition of H2S is 0.726 H2S = H2+S initally only H2S is present at a pressure of 0.126 atm in a closed container.
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