Question

*Question Completion Status: a) For the reaction O2 (9) + 2NO(9) -... 2NO2 (g) Experiments were carried out to find out how the rate of the reaction depend on the concentrations of the reactants. The results were surrirarized in the following table. Experiment Initial Rate (mol/l.) 3.21 x 10 1 2 6.40 x 10 Initial Reactant Concentrations (mol/L) [0] [NO 1.10 x 10 1.30 x 10 2.20 x 100 1.30 x 100 1.10 x 10 2.60 x 10 1.30 x 100 1.10 x 100 3.90 x 102 12.8 x 10 3 4 3 330 x 10 960 x LOS 28.8 x 10 Use the following dulu lo dulemine; i) individual orders ii) overall reaction order iii) rato constant (6 marks) ethylene (C2H4) b) At 1000ºC. cyclobutane (C4H8) decomposea in a first-order reaction. The rate constant is 87 s 1. Cyclobutane decomposes into two molecules i) The initial concentration is 2.00 M. What is the concentration after 0.010 s? ii) What fraction of CAHg hus decomposed in this tirnic? (4 marks) c) Fuel engineers use the extent of the change from CO and H20 to CO2 and H2 to regulate the proportions of synthetic fuel mixtures. If 0.250 mol of CO and 0.250 mol of H20 cases are placed in a 125-ml flank 900K, what is the composition of the equilibrium mixture? At this temperature, Ko is 1.56. CO(g) + H2O(g) C0 (g) + H2(g)

Answer 1

As experts we're allowed to answer only the first 4 parts of a single question. So, please post rest of the Questions seperately.

a) i) Order with respect to NO = 2 (Two)

Order with respect to O_{​​​​​​2} = 1 (One)

ii) Overall Reaction order = 3 (Three)

iii) Rate Constant = (3.21*10^-3)/{(1.1*10^-2)*(1.3*10^-2)²

= 1726.735 L^{​​​​​​2} mol^{​​​​-2} s^{​​​​​​-1}

b) Concentration of Cyclobutane after 0.01 s.

= 2*e^{​​​​​​-(87*0.01)} = 0.8379 M

Fraction of C₄H_{​​​​​8} decomposed in this time

= (2-0.8379)/2 = 0.581