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11 Nov 2019
ChemActivity 57 Rates of Chemical Reactions 343 b) Compare the three answers from part a). Explain why the relative values are Table 2, Experimental rate laws for several chemical reactions. Reaction CH3Br(aq) + OH-(aq) CH3OH(aq) + Br(a) 2N0(g) + O2(g) 2 NO2(g) 2 HI(g)= H2(g) + 12(g) rate-k (CH3Br) rate- k(NO (O2) rate = k(H02 rate. kang) (N05) NHt(aq) + Noi(aq)= N2(g) + 2 H2O(E) CH3CHO(g)=CH4(g) + CO(g) rate (CHyCHO32 Critical Thinking Questions 11. Based on the data in Table 2, is the order of a reaction with repect to a particular species always equal to is stoichiometric coefficient in the chemical equation? 12. Comment on the appropriateness of the folowing methods to determine the order of a reaction. Examine the stoichiometric coefficients in the chemical equation. In this method, the order of a reaction with respect to a compooent is equal to the stoichiometric coefficient of that component in the chemical equation. a) Perform experiments. In this method, the order of a reaction with respect to a component is determined by how the reaction rate changes when the concentration(s) is changed. b)
ChemActivity 57 Rates of Chemical Reactions 343 b) Compare the three answers from part a). Explain why the relative values are Table 2, Experimental rate laws for several chemical reactions. Reaction CH3Br(aq) + OH-(aq) CH3OH(aq) + Br(a) 2N0(g) + O2(g) 2 NO2(g) 2 HI(g)= H2(g) + 12(g) rate-k (CH3Br) rate- k(NO (O2) rate = k(H02 rate. kang) (N05) NHt(aq) + Noi(aq)= N2(g) + 2 H2O(E) CH3CHO(g)=CH4(g) + CO(g) rate (CHyCHO32 Critical Thinking Questions 11. Based on the data in Table 2, is the order of a reaction with repect to a particular species always equal to is stoichiometric coefficient in the chemical equation? 12. Comment on the appropriateness of the folowing methods to determine the order of a reaction. Examine the stoichiometric coefficients in the chemical equation. In this method, the order of a reaction with respect to a compooent is equal to the stoichiometric coefficient of that component in the chemical equation. a) Perform experiments. In this method, the order of a reaction with respect to a component is determined by how the reaction rate changes when the concentration(s) is changed. b)
Collen VonLv2
13 Oct 2019