# Which graph represents second order reaction?

## Which graph represents second order reaction?

For a second-order reaction, a plot of the inverse of the concentration of a reactant versus time is a straight line with a slope of k.

## How do you graph second order?

For second order, if you graph the inverse of the concentration A versus time, you get a positive straight line with a positive slope, then you know it’s second order. The other thing; is you graph 3 or 4 points, and you notice they’re straight, then that would be plenty to help you figure out.

What does a second order reaction look like?

Second-order reactions generally have the form 2A → products or A + B → products. Simple second-order reactions are common. In addition to dimerization reactions, two other examples are the decomposition of NO2 to NO and O2 and the decomposition of HI to I2 and H2.

What is the order of second order reaction?

Second order reactions can be defined as chemical reactions wherein the sum of the exponents in the corresponding rate law of the chemical reaction is equal to two. The rate of such a reaction can be written either as r = k[A]2, or as r = k[A][B].

### What is the graph of zero order reaction?

Conversely, a graph of the concentration of any product as a function of time is a straight line with a slope of k, a positive value. The graph of a zeroth-order reaction. The change in concentration of reactant and product with time produces a straight line.

### How do you find the order of a reaction using a graphical method?

Graphical Method If the plot of log [A] vs t is a straight line, the reaction follows first-order . If the plot of 1/[A] vs t is a straight line, the reaction follows second order. If the plot of 1/[A]2 is a straight line , the reaction follows third order.

Is sn2 a second order reaction?

The bimolecular nucleophilic substitution reaction follows second-order kinetics; that is, the rate of the reaction depends on the concentration of two first-order reactants.

What is first order and second order reaction?

A zero-order reaction proceeds at a constant rate. A first-order reaction rate depends on the concentration of one of the reactants. A second-order reaction rate is proportional to the square of the concentration of a reactant or the product of the concentration of two reactants.

#### How do you find the rate constant on a second order graph?

The integrated rate law for the second-order reaction A → products is 1/[A]_t = kt + 1/[A]_0. Because this equation has the form y = mx + b, a plot of the inverse of [A] as a function of time yields a straight line. The rate constant for the reaction can be determined from the slope of the line, which is equal to k.

#### How do you determine if a reaction is second order?

A graphical method based on the respective rate laws can also be used. If the plot of log (a-x) versus ‘t’ is a straight line, the reaction follows second order. If the plot of 1/ (a-x) 2 versus ‘t’ is a straight line, the reaction follows third order.

How do you know if a graph is second order?

If the plot of log (a-x) versus ‘t’ is a straight line, the reaction follows second order. If the plot of 1/ (a-x) 2 versus ‘t’ is a straight line, the reaction follows third order. In general, for a reaction of nth order, a graph of 1/ (a-x) n-1 versus ‘t’ must be a straight line.

How do you rearrange the integrated rate law equation of reactions?

Generalizing [R] t as [R] and rearranging the integrated rate law equation of reactions of the second order, the following reaction is obtained. Plotting a straight line (y=mx + c) corresponding to this equation (y = 1/ [R] , x = t , m = k , c = 1/ [R] 0)

## What is the plot of [a] versus time for a zero order reaction?

For a zero order reaction, as shown in the following figure, the plot of [A] versus time is a straight line with k = – slope of the line. Other graphs are curved for a zero order reaction.