The initial rate of a reaction depended on concentration of a substance J as follows: D,/(mmol dm-³) vol(10-7 mol dms") 5.0 8.2 17 30 3.6 9.6 41 130 Determine the order of the reaction with respect to J and calculate the rate constant. [2, 1.4 x 10-2 dm³ mol-' s-']

At a temperature of 27oC and the reaction rate is 6.378 x 10-1 s-1. The reaction is of order 1. It has an activation energy (Ea) of 49884 J/mol and R = 8.314 J/mol.K, at a temperature of 127 oC the reaction rate constant is……… A. 1B. 100C. 10D. 1000E. 0.1

The reaction 2 N205(g) → 4 NO2(g) + O2(g) was studied and the rate of change of the concentration of O2 was found to be 3.65 mol L 15-1. Calculate the reaction rate (in mol L1s1). Reaction rate = i mol L-1s-1. eTextbook and Media Save for Later Attempts: 0 of 3 used Submit Answer

Label the reaction profiles below as exothermic or endothermic and use them to calculate the activation energy of the forward and reverse reactions and the value of AH for the reaction. This is a reaction of profile of an 250 exothermic/endothermic reaction 200 PE 150 (kJ) Eaf = ...... 100 Ea, = 50 AH = Reaction pathway 100 This is a reaction of profile of an 80 exothermic/endothermic reaction 60 PE (kJ) A+B 40 Ear = C+D 20 Ear = ΔΗ Progress of the reaction

The following data were obtained for the hypothetical reaction: The proper units of the rate constant should be: The data necesary is in the image

for this reaction (including orders). Also give the overall order for this reaction: rate law: overall order = %3D 3. Calculate the rate constant, k, for this reaction (use the data from Experiment #1, show all your work): wollood 4. Explain exactly what experiment(s) must be performed in order to

Determine order of reaction with aspect To A show reasoning determine order of reaction with respect to B showing reason write rate of reaction what are units of rate constant with reasoning  Determine value of K

8. Consider the reaction below: 2NO2 (9) (0ONZ Intial concentration of Initial concentration of O2 (mol/dm') Initial rate of formation of NO2 NO (mol/dm) (mol/dm) 0.12 0.05 0.12 0.12 0.10 0.24 0.24 0.05 0.48 Calculate the following The order of the reaction with respect to NO? The order of the reaction with respect to 02? i. ii. ii. The overall order of the reaction. iv. State clearly the units for this overall order reaction above in (ii) Calculate the value of the rate constant, k. V.

23 II. An experiment followed the decomposition. of nitregen dioxide to nitregen monoxide & oxygen gas. Given the following data, what order is the reaction for nitrogen dioxide? Given an initial concentration of nitrogen dioxide of 0.0400 M, what's the concentration of this reactant after a half hour? show all grapers & calcs to determine answers. (sec) Time |[NO₂] (M) 0.0 50.0 100.0 200.0 300.0 0.01000 0.00787 0.00649 0.00481 0.00380 M G 2 XX 6.5 Hoa X019 201 2(x) = 2 (1.86) (3 (9)

* 97% 7:58 PM Wed Feb 12 х Unanswered •1 attempt left • Due on Feb 13 Rate law of a reaction is experimentally determined as Rate = k [A]^2 [B]^0 [C] The unit of k is sec/M 1/M^3-sec 1/M^2-secc. 1/M^4-sec M^3/sec Submit