複選題4. Which of the following kinetics statements is (are) correct? (AB) If the rate of a reaction increases by a factor of 8 when the concentration of a reactant increases by a factor of 2. the order of the reaction with respect to this reactant is 4. (AC) Decomposition of nitrous oxide is a zero-order reaction. (AD) The rate law of a reaction can be predicted from reaction stoichiometry. (AE) The rate law of a zeroth-order reaction is rate = k. (BC) An enzyme-catalyzed reaction may appear to be zero-order if the number of enzyme molecules in the reaction is limited in relation to substrate molecules. (BD) Even complex biological processes may exhibit Arhenius behavior within certain temperature ranges.

複選題1. For the reaction 2N2O5(g) 4NO2(g) + O2(g). (AB) The amount of NO2 in the reaction container is four times the amount of O2regardless how the reaction mixture is prepared for the reaction to oceur. (AC)At the moment when N2O5(g) is first transferred to the empty reaction container. the rate of disappearance of N2O5 is more than two times the rate of formation of O2. (AD) At any instant. the rate of formation of NO2 is two times the rate of disappearance of N2O5. (AE) The reaction is a second-order reaction. just like any reactions of 2M2N5 → 4MN2 + N2. (BC)If the measured initial rates are M/sec for the initial concentrations of N2O5 of 0.0050 M and 0.010 M. respectively, the overall reaction order is one. (BD) The activation energy of the reaction may be derived from measuring the rate constants at two different temperatures.

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