Kinetics: 17.1-17.3

• What is kinetics about?

  How fast a chemical reaction goes
• Ex: A + 2B -> C. What is the rate of change of the A equation

  Delta [A]/Delta [T]
• What does [] mean

  Concentration in mol/L
• What is the rate of reaction equation?

  R = -(1/stoich) delta [A]/delta t = (1/2) delta [B]/delta t
• What are two things that impact rate?

  reaction concentration and temperature
• How does reactant concentration impact rates?

  Concentration and rate goes down
• What is a catalyst?

  a substance that increases the rate of a chemical reaction without being consumed in the process.
• How does temperature impact rates?

  Temp and rate goes up
• What is the rate laws of form R=

  k[A]^x[B]^y[C]^z
• Simple exponents (2,1,0,-1) are easily determined from...

  initial rate data (instantaneous rate at t=0) with all but one concentration held constant
• If rate doubles on doubling, what is the exponent

  1
• If the rate halves on doubling, what is the exponent?

  -1
• If rate quadruples on doubling, what is the exponent?

  2
• If rate is independent, what is the exponent?

  0
• What do exponents provide?

  order
• What does the sum of all exponents mean?

  overall order
• Write out the rest of the equation that gets non-integer exponents: y=ln(R1/R2)/

  ln([B]1/[B]2)
• A balanced reaction will not allow you to...

  determine the rate law