(a) Define the following :
(i) Order of reaction
(ii) Activation energy of reaction
(b) `A+2Brarr3C+2D`. The ratio of disapppearance of B is `1xx10^(-2)` `molL^(-1)s^(-1)`. What will be
(i) Rate of the reaction (ii) Rate of change in concentration of A and C?

Explanation

### Step-by-Step Solution:

#### (a) Definitions

**(i) Order of Reaction:**
The order of a reaction is defined as the sum of the powers of the concentration of the reactants in the rate law expression. For example, if the rate law for a reaction is given as:
\[ \text{Rate} = k[A]^m[B]^n \]
where \( m \) and \( n \) are the orders with respect to reactants A and B respectively, then the overall order of the reaction is \( m + n \).
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