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U10 PT - Brianna, Iona, & Gina (Chemical Rates (Factors that play into…

- - - - One step reaction use rate = k [A]
      - General Rate Law: rate = k[A]^x[B]^y
        
        [A] and [B] represents the concentration of the reactant
        
        symbol k is the specific rate constant = a numerical value that relates the reaction rate and the concentrations of reactants at a given temperature
        
        x and y represent the reaction order
        
        x + y = overall order
        
        You are not explaining HOW to solve a rate problem
    - - EXAMPLE: Rate = k[H2O2], The reaction is first order, so the rate changes in the same proportion the concentration of H2O2 changes.
  - - - the greater the rate of effective collisions, the greater the reaction rate is
  - - - Initial rate measures how fast the reaction proceeds at the moment when reactants are mixed.
- - - - Calculating equilibrium constants
        
        “Calculating the Equilibrium Constant.” Youtube, Youtube, 17 June 2010, www.youtube.com/watch?v=_Sw93EEVq3w.
        
        ONLY for very small Kc values; that is the only ones you learned how to solve
  - - - At equilibrium, the rates of forward and reverse reactions will be equal
      - All reactants and products are available
      - Reactants and products will be in constant values of concentration
  - - - forward reaction: a reaction in which products are produced from reactants and it goes from left to right in a reversible reaction
    - - reverse reaction: the reactants form products that react together to give the reactants back
  - - - increase temperature of system --> away from heat/energy endothermic reaction is favored
        
        decrease temperature of system --> towards heat/energy exothermic reaction is favored
    - - increase pressure of system --> towards fewer moles of gas
        
        decrease pressure of system --> towards more moles of gas
    - - increase concentrations of a substance --> away from substance
      - decrease concentration of a substance --> towards substance
    - - NO SHIFT