The gas-phase decomposition of ozone: 20,+302 Is believed to have the mechanism: 03 + M =...
12. The following mechanism is proposed for the decomposition of ozone (O3) to O2: 03 + M 02 + 0 + M 0+03 2 02 Apply the steady-state approximation to the concentration of atomic oxygen, and derive the rate law for the decomposition of ozone (M stands for a molecule that can exchange kinetic energy with particles undergoing the chemical reaction.)
12. The following mechanism is proposed for the decomposition of ozone (O3) to O2: 03 + M 02 +...
1. When ozone absorbs ultraviolet light, it forms molecular oxygen. 203(g) + 302(g This reaction is believed to go by this simple mechanism: (1) 03(g) = 02(g) + 0(g) (2) 0(g) + 03 (g) → 202(g) Q3! containing only reactant and/or product (a) Using the steady-state approximation, determine an expression for concentrations (i.e. things that appear in the net reaction). (b) In the upper atmosphere, [03] is typically quite small compared to [02], which remains essentially constant since it is...
19. Based on the following mechanism for the ozone thermal decomposition into molecular oxygen ki 03(g) 03(g) + O(g) k- * O2(g) + O(g) 202(g) (fast equilibrium) The expression of the following rate expression is given by B) kafj= kg 21 22 ka-k-3
17. The following mechanism has been proposed for the thermal decomposition of ozone in the gas phase: 20 0 + 0₂ 0₂ + O₂ + 0 202 The rate expression for the production of oxygen is: A 3kı[O3] B) k2[O3][O] C) 2k1[O3] D) 2k1 [03]3/2 E) ki[O3]
Gaseous ozone undergoes decomposition according to the stochiometric equation: 203(g) →302 (g) Two alternative mechanisms have been proposed to account for this reaction. Mechanism 2 03 302 bimolecular, rate constant k Mechanism II 03 02 + fast equilibrium, equilibrium constant K1 0+ 03 — 202 slow, rate constant k2 A. Derive rate laws for the formation of O2 for each mechanism. B. Thermodynamic measurements give standard enthalpies of formation for each of the following species at 298 K: species AH°...
Consider the following reaction on acetone (CH3COCH3), the mechanism is believed to involve four elementary steps: CH3COCH; 4+ CH3 + CH3CO CH3 + CH3COCH; CH4 + CH3COCH, CH;COCH2 _ky → CH3 + CH2CO CH3 + CH3COCH, ko > CH3COCZH (a) Write down an expression for the rate of disappearance of CH3COCHz. (3 marks) Assume kz >> k[CH3), apply the steady-state approximation and work out an expression for (CH3) in term of kį, kz, kz and ke. Show all of your...
Consider the recombination reaction: 2 Br(g) Br2 (8) The mechanism involves two elementary steps. The first step results in formation of an energized Bra molecule, the excess energy carried by Bris then transferred to a molecule M for subsequent formation of Bry in the second step First step: 2 Br (8) Bry* () + M ) Brz* () Brz () +M() Second step: By the steady-state approximation and work out an expression for d[Brydr in term of k, k., ky...
For the gas phase decomposition of dinitrogen pentoxide at 335 K 2 N205 4 NO2 + O2 the following data have been obtained: 0.173 [N2O3], M time, s 9.75x10-2 122 5.50x10-2 244 3.10x102 366 Ms! The average rate of disappearance of N,Os over the time period from t=0 stot - 122 sis Submit Answer Retry Entire Group 9 more group attempts remaining For the gas phase decomposition of hydrogen iodide at 700 K 2 HI -H2 +12 the following data...
Methane, a powerful greenhouse gas, is generated via the anaerobic decomposition of solid waste in landfills. Collecting the methane for use as a gaseous fuel rather than allowing it to be released to the atmosphere provides an alternative to natural gas as an energy source and has a beneficial effect on the environment. If a batch of waste with mass M(tonnes) [1 tonne or 1 metric ton = 1000 kg] is deposited in a landfill at t=0, the rate of...
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Question 5 A particle of mass m rests on a smooth horizontal track. It is connected by two springs to fixed points at A and B, which are a distance 2lo apart as shown in Figure Q5. The left-hand spring has natural length 2lo and stiffness k, whilst the right-hand...