Reaction Kinetic : 11.1 Reaction Rate

• What is reaction rate?
  

• how fast the concentration of reactant(or product) are change in a chemical reaction
  

• How to expressing the reaction rate? 
  

                                              A + B 

                reaction rate = -d[A]/dt = d[B]/dt

• The negative value of [A] indicates the decreasing amount of A which is the reactant
  

• How to calculate the reaction rate ?
  

- by calculating the gradient of the following graph

• How to differential the rate of reaction?
  
  aA + bB → cC + dD
  

• rate equation for the above reaction can be written as:

   -1/a d[A]/dt = -1/b d[B]/dt = 1/c d[C]/dt = 1/d d[D]/dt

• Rate law and order of reaction