Ozone decomposes to form oxygen molecules and oxygen atoms, O3(g) ? O2(g) + O(g), in the upper atmosphere. The energy of activation for this reaction is 93.1 kJ/mol. At 600 K, the rate constant for this reaction is 3.37
Ozone decomposes to form oxygen molecules and oxygen atoms, O3(g) ? O2(g) + O(g), in the...
Ozone decomposes to molecular oxygen: 2 O3(g) ⇋ 3 O2(g). The following is a proposed mechanism for the reaction: Step 1: O3(g) ⇋ O2(g) + O(g) (fast) Step 2: O3(g) + O(g) ⇋ 2 O2(g) (slow) Provide a valid rate law for the overall ozone decomposition reaction based on this mechanism. 4. Ozone decomposes to molecular oxygen: 203(g) — 3 O2(g). The following is a proposed mechanism for the reaction: Step 1: 03(g) – O2(g) + O(g) (fast) Step 2:...
One of the components of smog is ozone,O3, a colorless, toxic gas. It is a very strong oxidizing agent and causes respiratory illnesses. Ozone is produced in the lower atmosphere due to the catalytic effect of nitric oxide, NO, a byproduct of the combustion process in car engines. However, in the upper atmosphere ozone is a very useful gas, because it absorbs ultraviolet radiation and protects the earth from this high energy, damaging radiation. It is referred to as the...
1. One mole of oxygen gas (O2) molecules has fewer atoms than one mole of ozone gas (O3) molecules ( True or false) 2. One molecule of oxygen gas (O2) has fewer atoms than one mole of ozone gas (O3) (True or false)
Ozone (O3) in the atmosphere can react with nitric oxide (NO): O3(g) + NO(g) --> NO2(g) + O2(g). ( ΔH° = –199 kJ/mol, ΔS° = –4.1 J/K·mol) Write answers to three significant figures. a. Calculate the ΔG°( kJ/mol) for this reaction at 25°C. b. Determine the temperature(oC) at which the reaction is at equilibrium.
Ozone (O3) in the atmosphere can be converted to oxygen gas by reaction with nitric oxide (NO). Nitrogen dioxide is also produced in the reaction. What is the enthalpy change when 8.50L of ozone at a pressure of 1.00 atm and 25°C reacts with 12.00 L of nitric oxide at the same initial pressure and temperature? [∆H°f (NO) = 90.4 kJ/mol; [∆H°f (NO2) = 33.85 kJ/mol; ∆H°f (O3)= 142.2 kJ/mol] [O3 + NO O2 + NO2] show all work...
In the upper atmosphere, ozone is produced from oxygen gas in the following reaction. 3O2(g) → 2O3(g) Calculate ΔGo for this reaction. Enter your answer in kJ and give 3 significant figures. Calculate ΔHo for ozone formation. (Enter your answer in kJ and give 3 significant figures). Calculate ΔSo for ozone formation. (Enter your answer in J/K and give 3 significant figures). Assume an atmosphere where p(O2) = 0.120 atm, and where T = 298 K. Below what pressure of...
Ozone (O3) in the atmosphere can react with nitric oxide (NO): O3(g) + NO(g) --> NO2(g) + O2(g). ( ΔH° = –199 kJ/mol, ΔS° = –4.1 J/K·mol) Write answers to three significant figures. a. Calculate the ΔG°( kJ/mol) for this reaction at 25°C. Blank 1 b. Determine the temperature(oC) at which the reaction is at equilibrium.
5. The decomposition of ozone is important to many atmospheric reactions: O3(g) à O2(g) + O(g) A study of the kinetics of the reaction resulted in the following data: Temperature (K) Rate Constant (M-1·s-1) Temperature (K) Rate Constant (M-1·s-1) 600 3.37 x 103 1300 7.83 x 107 700 4.85 x 104 1400 1.45 x 108 800 3.58 x 105 1500 2.46 x 108 900 1.70 x 106 1600 3.93 x 108 1000 5.90 x 106 1700 5.93 x 108 1100...
Nitrogen dioxide can react with ozone to form dinitrogen pentoxide and oxygen: 2NO2(g) + O3(g) → N2O(g) + O2(g) a) Based on the above information, write the two-step mechanism for this reaction b) Identify and write the rate law for this reaction:
Nitrogen dioxide can react with ozone to form dinitrogen pentoxide and oxygen: 2NO2(g) + O3(g) → N2O(g) + O2(g) a) Based on the above information, write the two-step mechanism for this reaction: b) Identify and write the rate law for this reaction: c) Which step above is the rate determining step and why?