# How do you find rate constant from data?

## How do you find rate constant from data?

The rate law for a zero-order reaction is rate = k, where k is the rate constant. In the case of a zero-order reaction, the rate constant k will have units of concentration/time, such as M/s.

## How do you find rate constant from experimental data?

You can determine it by adding the exponents x and y. Now, you can plug in the experimental data and solve for k, which is the rate constant relating the concentration of reactants to the reaction rate.

Which order of reaction is independent of concentration?

zero-order reaction
Unlike the other orders of reaction, a zero-order reaction has a rate that is independent of the concentration of the reactant(s). As such, increasing or decreasing the concentration of the reacting species will not speed up or slow down the reaction rate.

What is K in a second-order reaction?

The units of the rate constant, k, depend on the overall reaction order. The units of k for a zero-order reaction are M/s, the units of k for a first-order reaction are 1/s, and the units of k for a second-order reaction are 1/(M·s).

### What is the experimental rate constant?

Once the rate law for a reaction is determined, the specific rate constant can be found by substituting the data for any of the experiments into the rate law and solving for k. Notice that the rate law for the reaction does not relate to the balanced equation for the overall reaction.

### How do you determine the order of a reaction from experimental data?

Either the differential rate law or the integrated rate law can be used to determine the reaction order from experimental data. Often, the exponents in the rate law are the positive integers: 1 and 2 or even 0. Thus the reactions are zeroth, first, or second order in each reactant.

How do you calculate rate of reaction from a graph?

If you plot a graph of [A] vs. t and draw a line tangent to the graph, then rate = ½ × |slope| of the line (rate is always a positive number). To find the instantaneous rate of reaction at a given time: Plot a graph of concentration of reactant against time of reaction.

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