dvb041008a4 - Formation of Ammonia originally osmium and...

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Principles of Chemistry II © Vanden Bout Today Catalysis Principles of Chemistry II © Vanden Bout Principles of Chemistry II © Vanden Bout Principles of Chemistry II © Vanden Bout Catalyzes three chemical reactions 2NO x xO 2 + N 2 2CO + O 2 2CO 2 2C x H y + (2x+y/2)O 2 2xCO 2 + yH 2 O
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Principles of Chemistry II © Vanden Bout Smog Sun + NO x + VOC = photochemical smog Volatile Organic Compound (uncombusted fuel for example) smoke + SO 2 + water Principles of Chemistry II © Vanden Bout Great Smoky Mountains VOC released from the trees lead to a sort of "natural smog" Greatly enhance by adding NO x Principles of Chemistry II © Vanden Bout Ozone O 3 Great in the upper atmosphere Principles of Chemistry II © Vanden Bout Ozone O 3 Bad down here O 3 is a great oxidizing agent O 3 + lungs = reacted lung tissue
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Principles of Chemistry II © Vanden Bout Principles of Chemistry II © Vanden Bout Haber Process (Fritz Haber Nobel 1918)
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Unformatted text preview: Formation of Ammonia originally osmium and uranium Now iron (keep out the O 2 ) Ertl Nobel Prize 2008 Principles of Chemistry II Vanden Bout Enzymes Biological Catalysts Principles of Chemistry II Vanden Bout Substrate + Enzyme = Complex = Product + Enzyme S + E = [SE] = P + E Principles of Chemistry II Vanden Bout Enzyme Name = Function Glucose Oxidase Oxidizes Glucose Aromatic Amine Dehydrogenase removes Hydrogen from an aromatic amine Hydrolase Hydrolyze reactions Isomerase Isomerize molecules Transferase Transfers functional groups Principles of Chemistry II Vanden Bout So you want to make a catalyst? Principles of Chemistry II Vanden Bout k = A e-Ea/RT ]-E a R [ 1 T 2 T 1 1-ln(k 2 /k 1 )= [A] = [A]-akt ln[A] = ln[A]-akt 1/[A] = 1/[A] +akt t 1/2 = [A] /2k t 1/2 = 0.693/k t 1/2 = 1/k[A]...
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dvb041008a4 - Formation of Ammonia originally osmium and...

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