3.11 Timed Assessments

3.11.1 Reaction Rates

Practice


Answers

Question 1

  1. 0.300 M s–1
  2. 0.450 M s–1
  3. 0.600 M s–1
  4. 0.450 M s–1

Question 2

  1. 0.119 M h–1
  2. 0.357 M h–1
  3. 0.119 M h–1
  4. 0.357 M h–1

Question 3

  1. 0.0345 mol L–1 min–1
  2. 0.104 mol L–1 min–1
  3. 0.0345 mol L–1 min–1


3.11.2 Method of Initial Rates

Practice


Answers
  1. rate = [A][B]2; 3rd order; k = 1.03 × 104
  2. rate = [A][B] ; 2nd order; k = 1.97 × 104
  3. rate = [A][B] ; 2nd order; k = 7.97


3.11.3 Integrated Rate Laws

Practice


Answers
  1. 292 min
  2. 8.15 × 10–4 M min–1
  3. 2.318 M


3.11.4 Half-life

Practice


Answers
  1. 12,601 s
  2. 331 s
  3. 485 s


3.11.5 Arrhenius Equation

Practice

Solve for Ea.



Answers
  1. 47.0 kJ mol–1
  2. 8.00 kJ mol–1
  3. 50.0 kJ mol–1


Practice

Solve for T1.



Answers
  1. 66.0 °C
  2. 31.0 °C
  3. 38.0 °C


Practice

Solve for T2.



Answers
  1. 52.0 °C
    1. °C
  3. 112 °C


Practice

Solve for k1.



Answers
  1. 0.1324 M s–1
  2. 5.218 M–1 s–1
  3. 0.001430 s–1


Practice

Solve for k2.



Answers
  1. 0.8341 M s–1
  2. 3.418 M–1 s–1
  3. 0.003460 s–1




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