74. Experiments were conducted to study the rate of the reaction represented by this equation.21 2NO(g) + 2H2(g) → N2(8) + 2H20(g) Initial concentrations and rates of reaction are given here. Experiment Initial Concentration Initial Concentration, [H2] Initial Rate of Formation of [NO] (mol L-) (mol L-1 min ) N2 (mol L-1 min ) 1 0.0060 0.0010 1.8 x 10-4 2 0.0060 0.0020 3.6 x 10-4 3 0.0010 0.0060 0.30 x 10-4 4 0.0020 0.0060 1.2 x 10-4 Consider the following questions: (a) Determine the order for each of the reactants, NO and H2, from the data given and show your reasoning. (b) Write the overall rate law for the reaction. (c) Calculate the value of the rate constant, k, for the reaction. Include units. (d) For experiment 2, calculate the concentration of NO remaining when exactly one-half of the original amount of H2 had been consumed. (e) The following sequence of elementary steps is a proposed mechanism for the reaction. Step 1: NO + NO = N,0, Step 2: N202 + H, = H20+N,0 Step 3: N20+ H2 = N2+ H20 Based on the data presented, which of these is the rate determining step? Show that the mechanism is consistent with the observed rate law for the reaction and the overall stoichiometry of the reaction.
74. Experiments were conducted to study the rate of the reaction represented by this equation.21 2NO(g) + 2H2(g) → N2(8) + 2H20(g) Initial concentrations and rates of reaction are given here. Experiment Initial Concentration Initial Concentration, [H2] Initial Rate of Formation of [NO] (mol L-) (mol L-1 min ) N2 (mol L-1 min ) 1 0.0060 0.0010 1.8 x 10-4 2 0.0060 0.0020 3.6 x 10-4 3 0.0010 0.0060 0.30 x 10-4 4 0.0020 0.0060 1.2 x 10-4 Consider the following questions: (a) Determine the order for each of the reactants, NO and H2, from the data given and show your reasoning. (b) Write the overall rate law for the reaction. (c) Calculate the value of the rate constant, k, for the reaction. Include units. (d) For experiment 2, calculate the concentration of NO remaining when exactly one-half of the original amount of H2 had been consumed. (e) The following sequence of elementary steps is a proposed mechanism for the reaction. Step 1: NO + NO = N,0, Step 2: N202 + H, = H20+N,0 Step 3: N20+ H2 = N2+ H20 Based on the data presented, which of these is the rate determining step? Show that the mechanism is consistent with the observed rate law for the reaction and the overall stoichiometry of the reaction.
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Chapter1: Chemical Foundations
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![74. Experiments were conducted to study the rate of the reaction represented by this equation. 2
2NO(g) + 2H2(g) ·
N2(g) + 2H2O(g)
Initial concentrations and rates of reaction are given here.
Experiment
Initial Concentration
Initial Concentration, [H2]
Initial Rate of Formation of
[NO] (mol L-1)
(mol L-1 min-1)
N2 (mol L-1 min¬1)
1
0.0060
0.0010
1.8 × 10-4
2
0.0060
0.0020
3.6 x 10-4
3
0.0010
0.0060
0.30 × 10-4
4
0.0020
0.0060
1.2 x 10-4
Consider the following questions:
(a) Determine the order for each of the reactants, NO and H2, from the data given and show your reasoning.
(b) Write the overall rate law for the reaction.
(c) Calculate the value of the rate constant, k, for the reaction. Include units.
(d) For experiment 2, calculate the concentration of NO remaining when exactly one-half of the original amount of
H, had been consumed.
(e) The following sequence of elementary steps is a proposed mechanism for the reaction.
Step 1: NO + NO = N,02
Step 2: N,02 + H, = H20+N,0
Step 3: N20+ H, = N2+H2O
Based on the data presented, which of these is the rate determining step? Show that the mechanism is consistent with
the observed rate law for the reaction and the overall stoichiometry of the reaction.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdb81b1a9-e12f-4aa6-8c0a-edcc5a755cd8%2F89c50217-bc68-4b79-b687-0953ca91e610%2Fbne60pd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:74. Experiments were conducted to study the rate of the reaction represented by this equation. 2
2NO(g) + 2H2(g) ·
N2(g) + 2H2O(g)
Initial concentrations and rates of reaction are given here.
Experiment
Initial Concentration
Initial Concentration, [H2]
Initial Rate of Formation of
[NO] (mol L-1)
(mol L-1 min-1)
N2 (mol L-1 min¬1)
1
0.0060
0.0010
1.8 × 10-4
2
0.0060
0.0020
3.6 x 10-4
3
0.0010
0.0060
0.30 × 10-4
4
0.0020
0.0060
1.2 x 10-4
Consider the following questions:
(a) Determine the order for each of the reactants, NO and H2, from the data given and show your reasoning.
(b) Write the overall rate law for the reaction.
(c) Calculate the value of the rate constant, k, for the reaction. Include units.
(d) For experiment 2, calculate the concentration of NO remaining when exactly one-half of the original amount of
H, had been consumed.
(e) The following sequence of elementary steps is a proposed mechanism for the reaction.
Step 1: NO + NO = N,02
Step 2: N,02 + H, = H20+N,0
Step 3: N20+ H, = N2+H2O
Based on the data presented, which of these is the rate determining step? Show that the mechanism is consistent with
the observed rate law for the reaction and the overall stoichiometry of the reaction.
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