Summary on Rate Law and Reaction Mechanism by add37610

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									                                                                Name:                                                                                           Name:
                                                                Period:          Date:                                                                          Period:          Date:
Rate Factors and Rate Laws WS                                                                   Rate Factors and Rate Laws WS
 1. The study of the reaction rates and factors that affect it is called                    .    1. The study of the reaction rates and factors that affect it is called                    .

 2. Define reaction rate:                                                                        2. Define reaction rate:

 3. In the reaction C + O2  CO2, the reaction rate may be expressed as the rate at which        3. In the reaction C + O2  CO2, the reaction rate may be expressed as the rate at which
             is formed or the rate at which             and            are used up.                          is formed or the rate at which             and            are used up.

 4. A/An                                             is one that results in a reaction or        4. A/An                                             is one that results in a reaction or
    products being formed.                                                                          products being formed.

 5. The 2 criteria for an effective collision are:                                               5. The 2 criteria for an effective collision are:
       a.                                                                                              a.

        b.                                                                                              b.

 6. Define activation energy:                                                                    6. Define activation energy:


 7. If activation energy is high, a reaction (will/will not) probably take place.                7. If activation energy is high, a reaction (will/will not) probably take place.

 8. In the following pairs of reactions, which reaction will be faster:                          8. In the following pairs of reactions, which reaction will be faster:
        a. 1M HCl + Zn                            or              6M HCl + Zn                           a. 1M HCl + Zn                            or              6M HCl + Zn

        b. 1M HCl + Zn at 20oC                       or             1M HCl + Zn at 50oC                 b. 1M HCl + Zn at 20oC                       or             1M HCl + Zn at 50oC

        c. 1M HCl + powdered Zn                      or             1M HCl + stick of Zn                c. 1M HCl + powdered Zn                      or             1M HCl + stick of Zn

        d. 1M HCl + Zn + catalyst                    or             1M HCl + Zn                         d. 1M HCl + Zn + catalyst                    or             1M HCl + Zn

        e. CO2 in water at 1 atm                     or             CO2 in water at 2 atm               e. CO2 in water at 1 atm                     or             CO2 in water at 2 atm

 9. Rate laws relate                                 &                              .            9. Rate laws relate                                 &                              .

 10. Rate laws can be written directly from a (one-step/multi-step) reaction.                    10. Rate laws can be written directly from a (one-step/multi-step) reaction.
  11. In the rate law, Rate = k [X]3[Y]2                                                          11. In the rate law, Rate = k [X]3[Y]2
          a. The [ ] stand for                               and the unit is       /                      a. The [ ] stand for                               and the unit is       /

         b. The superscript 3 is the order and is gotten from                          in the            b. The superscript 3 is the order and is gotten from                          in the
            equation.                                                                                       equation.

         c. k is the                                                                                     c. k is the

         d. The overall order of this rate law is                                                        d. The overall order of this rate law is

  12.                  &              are the states that are NOT used in rate laws.              12.                  &              are the states that are NOT used in rate laws.

  13. Write the rate laws for the following one-step reactions:                                   13. Write the rate laws for the following one-step reactions:
         a. H2(g) + I2(g)  2HI(g)                                                                       a. H2(g) + I2(g)  2HI(g)


         b. 2A(s) + 3B(aq) + 2C(g)  A2B3C2(aq)                                                          b. 2A(s) + 3B(aq) + 2C(g)  A2B3C2(aq)


         c. 4NO2 + O2  2N2O5                                                                            c. 4NO2 + O2  2N2O5


  14. In the following reaction, 2A(s) + 3B(aq) + 2C(g)  A2B3C2(aq), what will happen            14. In the following reaction, 2A(s) + 3B(aq) + 2C(g)  A2B3C2(aq), what will happen
      to the rate if:                                                                                 to the rate if:
          a. [A] is doubled:                                                                              a. [A] is doubled:

         b. [B] is doubled:                                                                              b. [B] is doubled:

         c. [C] is doubled:                                                                              c. [C] is doubled:

         d. [A] [B] [C] is doubled:                                                                      d. [A] [B] [C] is doubled:

   15. Using the data below, write a rate law for the reaction between A & B (show work).          15. Using the data below, write a rate law for the reaction between A & B (show work).
[A] [B] Reaction Rate (M/L sec)                                                                 [A] [B] Reaction Rate (M/L sec)
 1     1               0.01                                                                      1     1               0.01
 2     1               0.08                                                                      2     1               0.08
 2     2               0.32                                                                      2     2               0.32

								
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