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Questions and Answers
What is the rate expression in terms of reactants and products for the reaction: N2 (g) + O2 (g) → 2 NO (g)?
What is the rate expression in terms of reactants and products for the reaction: N2 (g) + O2 (g) → 2 NO (g)?
- Rate = k[NO]
- Rate = k[N2][O2]2
- Rate = k[NO]2
- Rate = k[N2][O2] (correct)
What is the average rate of the reaction between 10 seconds and 30 seconds?
What is the average rate of the reaction between 10 seconds and 30 seconds?
- 0.019 M/s
- 0.015 M/s
- 0.013 M/s (correct)
- 0.022 M/s
What is the rate law for the reaction: A + 2 B → C?
What is the rate law for the reaction: A + 2 B → C?
- Rate = k[A]4
- Rate = k[A]4[B]
- Rate = k[A]2[B] (correct)
- Rate = k[A]1
What is the half-life for the first-order reaction: 2 H2O2 → 2 H2O + O2?
What is the half-life for the first-order reaction: 2 H2O2 → 2 H2O + O2?
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If the concentration of CHCl3 is increased by a factor of five while the concentration of Cl2 is kept the same, what will happen to the rate of the reaction?
If the concentration of CHCl3 is increased by a factor of five while the concentration of Cl2 is kept the same, what will happen to the rate of the reaction?
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Study Notes
Rate Expressions
- The rate expression for the reaction N2 (g) + O2 (g) → 2 NO (g) is in terms of reactants and products.
Average Rate
- The average rate of the reaction between 10 seconds and 30 seconds is calculated.
Rate Law
- The rate law for the reaction A + 2 B → C is a mathematical expression that describes the relationship between reactant concentrations and reaction rate.
Half-Life
- The half-life for the first-order reaction 2 H2O2 → 2 H2O + O2 is the time taken for the concentration of the reactant to decrease by half.
Effect of Concentration on Rate
- If the concentration of CHCl3 is increased by a factor of five while the concentration of Cl2 is kept the same, the rate of the reaction will increase.
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