**Determine the average rate of change of B from t=0 s to t=382 s.**

**Concepts and reason**

This is based upon the concept of chemical kinetics.

Rate of the reaction tells how quickly or slowly a reaction will take place. It also tells how quickly or slowly a reactant will disappear or a product will be generated.

**Fundamentals**

Average rate of a reaction is expressed in terms of reactant and product as follows:

Consider a reaction:

Here, a, b, x and y are the stoichiometric coefficients of P, Q, M and N respectively. P and Q are the reactants and M and N are the product of the reaction.

Rate of reaction ® is defined as the rate of disappearance of reactant or rate of production of products. So, Mathematically, it is represented as

Average rate of reaction is represented as,

**Answer:**

For the reaction as follows:

Expression for average rate, r is as follows

Expression (1) is as follows: