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5. Chlorine destroys the Earth's ozone layer by the following precess. CI + O3 → CIO...
One of the components of smog is ozone,O3, a colorless, toxic gas. It is a very...
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...
The destruction of the ozone layer by chlorofluorocarbons (CFCs) can be described by the following reactions:...
The destruction of the ozone layer by chlorofluorocarbons (CFCs) can be described by the following reactions: 2. ΔΗ"m-:-29.90 kJ AHonn 24.18 kJ CIO (g) + O3 (g)-) CI (g) + 2 O2 (g) 2 O3 (g) 3 02 (g) Use the above ΔΗ'm values to determine the value ΔΗ"m for the following reaction: Cl (g) + Os (g) > CIO (g) + O2 (g) AHoxn Strategy: Solution:
The rate determining step for the destruction of ozone is the formation of the Clo dimer...
The rate determining step for the destruction of ozone is the formation of the Clo dimer (formula: CloOCI) shown in the equation below. The rate is second order to the concentration of Clo. ClO+ CIO ooc (kaea3.4x1012 molecule cm s) This reaction is followed by the fast photolysis of the dimer and the fast destruction of ozone by Cl atoms: CLOOC+hy 2 CI+O Given the following concentrations: [CIO] 9.8 x 10 molecule cm and initial O, concentration 1 x 10...
2. The following mechanism has been suggested to explain the contribution of chlorofluorocarbons to the destruction...
2. The following mechanism has been suggested to explain the contribution of chlorofluorocarbons to the destruction of the ozone layer: Step 1 Step 2 O3 + CI CIO + O + CIO + O2 CI + O2 a) What is the overall equation for the reaction? (You can use an "=" sign for the arrow for your Moodle Quiz answer for this question. (1) b) Identify any intermediates. [1] c) Identify any catalysts. (1) d) If the first step is...
The decomposition of gaseous dinitrogen oxide in the presence of Cl2 at high temperatures is thought...
The decomposition of gaseous dinitrogen oxide in the presence of Cl2 at high temperatures is thought to follow the mechanism, Cl2(g) + 2 CI (9) N2O(g) + Cl (g) – N2(g) + CIO(g) 2 CIO(g) - C12(g) + O2(g) In the net overall reaction, the second step occurs twice for each occurrence of the first and third steps. In this mechanism, the catalysts are , and the intermediates are O A. catalysts - Cl2 & Cl; intermediates - CIO O...
a. If change of [ClO] / change of time = -2.3 × 10^7 M/s at 298...
a. If change of [ClO] / change of time = -2.3 × 10^7
M/s at 298 K, what is the rate of change in [Cl2] and [O2] in the
following reaction?
2 ClO -> Cl2 + O2
b. If change of [ClO] / change of time = -2.9 × 10^4
M/s, what is the rate of change of formation of oxygen ClO2 in the
following reaction?
ClO + O3 -> O2 + ClO2
ot command option control Chlorine monoxide (CIO)...
1) 2) 3) C3H8(g) + 5 O2(g) = 3 CO2(g) + 4H2O(1) AH = -2220 kJ...
1)
2)
3)
C3H8(g) + 5 O2(g) = 3 CO2(g) + 4H2O(1) AH = -2220 kJ Decreasing the temperature will result in shift the equilibrium to the right shift the equilibrium to the left Keq is decreased O no effect in shifting the equilibrium more information is needed Which of the following expressions is the correct equilibrium-constant expression for the reaction below? P4010(s) = P4(s) + 5 O2(g) [02]-5 O [0215 [P4010] [Pd][02] [P][0215 O [P4010] [P4010) [P][0,1175 A proposed...
1) 2) 3) 4) C3H8(g) + 5 O2(g) = 3 CO2(g) + 4H2O(1) AH = -2220...
1)
2)
3)
4)
C3H8(g) + 5 O2(g) = 3 CO2(g) + 4H2O(1) AH = -2220 kJ Decreasing the temperature will result in shift the equilibrium to the right shift the equilibrium to the left Keq is decreased O no effect in shifting the equilibrium more information is needed Which of the following expressions is the correct equilibrium-constant expression for the reaction below? P4010(s) = P4(s) + 5 O2(g) [02]-5 O [0215 [P4010] [Pd][02] [P][0215 O [P4010] [P4010) [P][0,1175 A...
#13 Interpreting Mechanisms 1. Consider the following mechanism: Step 1 Br2  
#13 Interpreting Mechanisms 1. Consider the following mechanism: Step 1 Br2 2Br fast Step 2 Br + H2 H2Br fast Step 3 H2Br + Br 2HBr slow a. What is the overall equation? b. Identify the intermediate(s) if any. c. What is the molecularity and the rate law for each step including any reversible steps? d. What is the predicted rate law expression for this reaction. Be sure to only list reactants from the overall equation and...
NUMBER 3 AND 4 PLEASE! I JUST NEED #3 AND 4 Ozone Formation: NO2(g), is formed...
NUMBER 3 AND 4 PLEASE! I JUST NEED #3 AND 4
Ozone Formation: NO2(g), is formed by chemical reactions involving N2(g) and O2(g) at the high temperatures Inside internal combustion engines in our cars. In the presence of sunlight, NO2(g) reacts with O2(g) to generate Os(s) as described by the following overall reaction: NO2(g) + O2(g) = NO(g) + O2(g) E = 306.5 l/mol This chemical process occurs in two steps, as illustrated in the potential energy diagram. In the...
The destruction of the ozone layer by chlorofluorocarbons (CFCs) can be described by the following reactions: 2. ΔΗ"m-:-29.90 kJ AHonn 24.18 kJ CIO (g) + O3 (g)-) CI (g) + 2 O2 (g) 2 O3 (g) 3 02 (g) Use the above ΔΗ'm values to determine the value ΔΗ"m for the following reaction: Cl (g) + Os (g) > CIO (g) + O2 (g) AHoxn Strategy: Solution:
The rate determining step for the destruction of ozone is the formation of the Clo dimer (formula: CloOCI) shown in the equation below. The rate is second order to the concentration of Clo. ClO+ CIO ooc (kaea3.4x1012 molecule cm s) This reaction is followed by the fast photolysis of the dimer and the fast destruction of ozone by Cl atoms: CLOOC+hy 2 CI+O Given the following concentrations: [CIO] 9.8 x 10 molecule cm and initial O, concentration 1 x 10...
2. The following mechanism has been suggested to explain the contribution of chlorofluorocarbons to the destruction of the ozone layer: Step 1 Step 2 O3 + CI CIO + O + CIO + O2 CI + O2 a) What is the overall equation for the reaction? (You can use an "=" sign for the arrow for your Moodle Quiz answer for this question. (1) b) Identify any intermediates. [1] c) Identify any catalysts. (1) d) If the first step is...
The decomposition of gaseous dinitrogen oxide in the presence of Cl2 at high temperatures is thought to follow the mechanism, Cl2(g) + 2 CI (9) N2O(g) + Cl (g) – N2(g) + CIO(g) 2 CIO(g) - C12(g) + O2(g) In the net overall reaction, the second step occurs twice for each occurrence of the first and third steps. In this mechanism, the catalysts are , and the intermediates are O A. catalysts - Cl2 & Cl; intermediates - CIO O...
a. If change of [ClO] / change of time = -2.3 × 10^7
M/s at 298 K, what is the rate of change in [Cl2] and [O2] in the
following reaction?
2 ClO -> Cl2 + O2
b. If change of [ClO] / change of time = -2.9 × 10^4
M/s, what is the rate of change of formation of oxygen ClO2 in the
following reaction?
ClO + O3 -> O2 + ClO2
ot command option control Chlorine monoxide (CIO)...
1)
2)
3)
C3H8(g) + 5 O2(g) = 3 CO2(g) + 4H2O(1) AH = -2220 kJ Decreasing the temperature will result in shift the equilibrium to the right shift the equilibrium to the left Keq is decreased O no effect in shifting the equilibrium more information is needed Which of the following expressions is the correct equilibrium-constant expression for the reaction below? P4010(s) = P4(s) + 5 O2(g) [02]-5 O [0215 [P4010] [Pd][02] [P][0215 O [P4010] [P4010) [P][0,1175 A proposed...
1)
2)
3)
4)
C3H8(g) + 5 O2(g) = 3 CO2(g) + 4H2O(1) AH = -2220 kJ Decreasing the temperature will result in shift the equilibrium to the right shift the equilibrium to the left Keq is decreased O no effect in shifting the equilibrium more information is needed Which of the following expressions is the correct equilibrium-constant expression for the reaction below? P4010(s) = P4(s) + 5 O2(g) [02]-5 O [0215 [P4010] [Pd][02] [P][0215 O [P4010] [P4010) [P][0,1175 A...
NUMBER 3 AND 4 PLEASE! I JUST NEED #3 AND 4
Ozone Formation: NO2(g), is formed by chemical reactions involving N2(g) and O2(g) at the high temperatures Inside internal combustion engines in our cars. In the presence of sunlight, NO2(g) reacts with O2(g) to generate Os(s) as described by the following overall reaction: NO2(g) + O2(g) = NO(g) + O2(g) E = 306.5 l/mol This chemical process occurs in two steps, as illustrated in the potential energy diagram. In the...
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