RATE LAW: (Law of Mass Action)
According to the rate law:
The rate of a chemical reaction is directly proportional to the concentration of reactants.
Consider the following reaction:
A + B ———-> C
dx/dt α [A] ———–i
dx/dt α [B] ———–ii
dx/dt α [A] [B]
dx/dt = (constant) [A] [B]
dx/dt = K[A] [B]
dx/dt = K[Reactants]
dx/dt = Rate of reaction
K = Rate constant
CHARACTERISTICS OF RATE CONSTANT:
1. Rate constant does not depend upon concentration of Reactants.
2. Rate constant depends upon temperature.
3. Rate constant changes by change in temperature.