Distinguish between specific reaction rate and rate of the reaction
What is the difference between Reaction Rate and Specific Rate Constant?
• The reaction rate gives an indication of the speed at which the reactions are converted to products. Specific rate constant is proportionality constant.
• Specific rate constant is a part of reaction rate.
• Specific rate constant only cannot give a valid statement of the reaction speed.
Specific Rate Constant
If we write the rate equation in relation to the reactant A in the above-given reaction, it is as follows.
R= -K [A]a [B]b
In this reaction k is the rate constant. This is known as specific rate constant when the concentration of each reactant is unity; i.e. one mole/dm3.
Reaction Rate
Reaction rate is simply the indication of the speed of the reaction. So it can be regarded as a parameter which determines how fast or how slow the reaction is.