1.

Define-) ollision frequencyntaneous rate of reaction.OR

Answer»

1) Collision Frequency is the average rate in which two reactants collide for a given system and is used to express the average number of collisions per unit of time in a defined system.

2) The initial rate of a reaction is the instantaneous rate at the start of the reaction (when t = 0). The initial rate is equal to the negative of the slope of the curve of reactant concentration versus time at t = 0.



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