Kinetics

Question 1

Reaction Order

Answer 1

• The order of reaction is ascertained from the number of reagents involved in the rate-determining step

Question 2

Rate Law and Half-Lifes

Zero-, First-, and Second-Order Reactions

Answer 2

• Zero-order
  
  • rate = k
    
    • Constant
  • t_1/2 = [A]₀/(2K)
    
    • Decreases as time increases
• First-order
  
  • rate = k[A]
    
    • Decreases as time increases
  • t_1/2 = ln(2)/k
    
    • Constant
• Second-order
  
  • rate = k[A]²
    
    • Decreases as time increases
  • t_1/2 = 1/(k[A]₀)
    
    • Decreases as time decreases