Question

what is first order reaction and write its formula​

Answer 1

Answer:

For first-order reactions, the equation ln[A] = -kt + ln[A]0 is similar to that of a straight line (y = mx + c) with slope -k. This line can be graphically plotted as follows. Thus, the graph for ln[A] v/s t for a first-order reaction is a straight line with slope -k.

Answer 2

Answer:

First Order Reaction;

A chemical reaction in which the rate of reaction is directly proportional to the concentration of the reacting substance — compare order of a reaction.

Formula:

A first-order reaction depends on the concentration of one reactant, and the rate law is:

r=−dAdt=k[A] r = − dA dt = k [ A ] .