Table 11.1 (data) m Test 15-cm Test Tube 10-cm Test Tube Tube Amount of KIO3 Trial Number Amount of Water Amount of NaHSO3 oln Reaction Time 20 drops 20 drops 20 drops 35 drops 30 drops 20 drops 5 drops 1:26 10 drops l0:42 20 drops 1:21 2 3 Table 11.2 (report) oncentration ria Number Concentration Reaction-Rate Change Reaction Rate Change betweern Trials 1 and 2 betweern Trials 1 and 3 2 3
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- what are the Reasonable Mechanism(a) Most commercial heterogeneous catalysts are extremelyfinely divided solid materials. Why is particle sizeimportant? (b) What role does adsorption play in the actionof a heterogeneous catalyst?Select true or false for the following statements about chemical kinetics.
- This is all about Chemical kinetics please help plsssssThe first step in the heterogeneoushydrogenation of ethylene is adsorption of theethylene molecule on a metal surface. One proposed explanation for the “sticking” of ethylene to a metalsurface is the interaction of the electrons in the C—C π bond with vacant orbitals on the metal surface. (a) If thisnotion is correct, would ethane be expected to adsorb to a metal surface, and, if so, how strongly would ethane bindcompared to ethylene? (b) Based on its Lewis structure,would you expect ammonia to adsorb to a metal surfaceusing a similar explanation as for ethylene?1. Differentiate homogeneous from heterogeneous catalyst. 2. Differentiate heterogenized homogeneous from heterogeneous catalyst. 3. Cite one example of biocatalyst and explain how it is used.
- Are the following processes examples of homogeneous or heterogeneous catalysis? a Hydrolysis of immiscible ethyl acetate (l) in an aqueous basic solution. b Conversion of NOX gases to N2 and O2 by platinum metal. c Decomposition of atmospheric ozone by NO gas. d Oxidation of ethyl alcohol, C2H5OH, by the enzyme alcohol dehydrogenase, ADH, to acetaldehyde in the body. e Solid-state conversion of C graphite to C diamond by transition metal additives at high pressure.Pyrolysis involves heating compounds to break them into smaller molecules, and typically involves free-radical chain reactions. Pyrolysis of crude oil fractions is a common method of making smaller hydrocarbons from large-chain hydrocarbons. Pyrolysis of ethane, C2H6, forms ethylene and hydrogen gases C2H4 and H2 as the primary products. Suggest a mechanism for this pyrolysis reaction, labeling your reactions as initiation, propagation, and termination steps.Please include the reaction mechanism aswell
- Determine the average rate of change of BB from ?=0 st=0 s to ?=272 s.t=272 s. A⟶2BA⟶2B Time (s) Concentration of A (M) 0 0.7300.730 136136 0.4450.445 272272 0.1600.160 rateB= __________M/sCatalyst is described as any substance that increases the rate of a reaction without itself being consumed. Give a modern and recent application of a catalyst used in a chemical reaction. a ) the commercial or trade name of the catalyst b ) the properties of the catalyst (e.g., shape, size, colour, price). c ) the advantages and the disadvantages of the chosen catalyst. d )catalytic reaction (e.g., the reactant, product, reaction equation, phase, selectivity, promoter, catalyst support, operating temperature & pressure).Q1) Give difference between the following with example; A) Heterogeneous and Homogenous Catalyst B) Complex and Double Salt