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1.)    The rate constant for a second order reaction is 0.20 M-1s-1. The time it takes for 0.50 M of reactant to halve is________ s

1.)    The rate constant for a second order reaction is 0.20 M-1s-1. The time it takes for 0.50 M of reactant to halve is________ s

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1.)    The rate constant for a second order reaction is 0.20 M-1s-1. The time it takes for 0.50 M of reactant to halve is________ s

 
2.) For the reaction PCl3 (g) + Cl2 --> PCl3 (g) , ∆H = –88 kJ. Which of the following is true? 
                   The reaction is non -spontaneous at all temperatures
                   The reaction is spontaneous only at low temperatures
                 The reaction is spontaneous only at high temperatures
                  The reaction is spontaneous at all temperatures
3.)   The rate constant for a second order reaction is 0.20 M-1s-1. The time it takes for 0.50 M of reactant to halve is________ s
          a. 1.2
          b. 3.5
          c. 10
           d. 2.5
4.)  For the reaction 2A + 4B --> 3C + 2D, the rate of reactions can be expressed in terms of ∆B as:
          a. –∆B/4∆t
          b.–4∆B/∆t
          c. +∆B/∆t
          d.+∆B/4∆t
5.)   A plot of lnk (k is the rate constant) vs 1/T gives a linear graph where the slope is equal to ____________.
          a.Entropy of reaction
          b.Rate of reaction
          c.Activation energy
          d.Enthalpy of reaction
6.)   For the reaction 2 NO2 (g) <=> N2O4 (g),  K= 0.67. If [NO2] = 2.0 M, and the [N2O4] = 1.0 M  , which of the following is true?

          a.The reaction is at equilibrium

          b.The reaction cannot reach equilibrium

          c. The reaction will move to the product side

          d.The reaction will move to the reactant side

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