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SOLVED: Title: Air Pollution and Removal of Ammonia using Packed TowersAmmonia is to be absorbed from the air by water in packed towers at 1 atm. The maximum allowable mole concentration C2 of ammonia to be exhausted is 0.15 (mol/mol). The following data/specifications are found from a single tower:Mass flow rate of water mi: 50 kg/sMass flow rate of water ma: 40 kg/sMole concentration of ammonia in air before absorption: 0.2 C'g1Allowable mole concentration of ammonia in water before absorption
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2023年8月13日
numerade.com
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A tanker truck carrying liquid ammonia overturns, releasing ammonia vapor into the air. (a) Approximating ammonia, oxygen, and nitrogen as spheres of equal diameter (3 ×10^-10 m), estimate the diffusion constant of ammonia in air at atmospheric pressure and 20^∘ C. (b) Calculate the time required for a 100-m root-meansquare displacement of ammonia from the truck, and express this time in everyday units (seconds, minutes, hours, days, or years). The actual time for the ammonia to travel this dis
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SOLVED:Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas (CH4) by the following process: 2 NH3(g) 3 O2(g) 2 CH4(g) Pt⟶ 2 HCN(g) 6 H2 O(g) Hydrogen cyanide is used to prepare sodium cyanide, which is used in part to obtain gold from gold-containing rock. If a reaction vessel contains 11.5 g NH3, 12.0 g O2, and 10.5 g CH4, what is the maximum mass in grams of hydrogen cyanide that could be made, assuming the reaction goes to completion as written?
2021年6月20日
numerade.com
1:19
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