Here's the question you clicked on:
shaqadry
Describe how to identify whether the order of the reaction is zero order, first order or second order?
Look at how the rate of reaction changes over time. If it's constant, it's zero, if it's linear it's first, if it's quadratic it's second
You have to solve using for instance, if we used a simple one reaction A + B -> Product yoU sould have: rate = k[A][B] and the reaction would be first order in A, first order in B and second order overall. The rate constant can then be determined from initial rate information easily when given.