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Eleventh Grade (Grade 11) Kinetics and Equilibrium Questions

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Grade 11 Kinetics and Equilibrium
Which of the following is true for a chemical reaction at equilibrium?
  1. only the forward reaction stops
  2. only the reverse reaction stops
  3. both the forward and reverse reactions stop
  4. rates of both forward and reverse reactions are the same
Grade 11 Kinetics and Equilibrium
Acid hydrolysis of methyl acetate is an example of a(n)                      .
  1. third-order reaction
  2. zero-order reaction
  3. second-order reaction
  4. first-order reaction
Grade 11 Kinetics and Equilibrium
As the temperature of the solid surface increases, the extent of adsorption of a gas                               .
  1. increases
  2. decreases
  3. remains unchanged
  4. first increases then decreases
Grade 11 Kinetics and Equilibrium
Which of the following is true for a chemical reaction at equilibrium?
  1. only the forward reaction stops
  2. only the reverse reaction stops
  3. both forward and reverse reaction stops
  4. rates of both forward and reverse reactions are the same
Grade 11 Kinetics and Equilibrium
A chemical equilibrium may be established by starting a reaction with                                         .
  1. reactants only
  2. products only
  3. any quantities of reactants and products
  4. all of the above
Grade 11 Kinetics and Equilibrium
An equilibrium that strongly favors products has                  .
  1. a value of K << 1
  2. a value of K >> 1
  3. a value of Q << 1
  4. a value of Q >> 1
Grade 11 Kinetics and Equilibrium
Based on the rate law for the reaction, an increase in the concentration of hydrogen ion has what effect on this reaction?
  1. The rate of reaction increases.
  2. The rate of reaction decreases.
  3. The value of the rate law constant increases and decreases at the same time
  4. Neither the rate nor the value of the rate law constant is changed.
Grade 11 Kinetics and Equilibrium
The following statements are true about heterogenous catalyst EXCEPT for what?
  1. Its presence changes the rate of chemical change.
  2. It does not undergo a permanent change.
  3. It is in the same phase as the reacting particles.
  4. Its presence decreases the potential energy of the activated complex.
Grade 11 Kinetics and Equilibrium
Consider the chemical equation:

[math]2NO + Cl_2 rarr 2NOCl[/math]

What would you determine the overall reaction order to be?
  1. First order
  2. Second order
  3. Third order
  4. Fourth order
Grade 11 Kinetics and Equilibrium
Which of the following species has the maximum energy content in a progressing chemical reaction?
  1. Transition complex
  2. Carbonium ion
  3. Carbocation
  4. Enantiomers
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