# What are the units for a zero order rate law?

## What are the units for a zero order rate law?

The unit of the rate constant in a zero order reaction is given by concentration/time or M/s where ‘M’ is the molarity and ‘s’ refers to one second.

## What is the equation for zero order reaction?

The integrated rate law for the zero-order reaction A → products is [A]_t = -kt + [A]_0. Because this equation has the form y = mx + b, a plot of the concentration 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.

What are the units for rate law?

A The rate law contains only one concentration term raised to the first power. Hence the rate constant must have units of reciprocal seconds (s−1) to have units of moles per liter per second for the reaction rate: M·s−1 = M/s.

### What is the zero order integrated rate law?

Zero-Order Reactions

Zero-Order First-Order
rate law rate = k rate = k[A]
units of rate constant M s-1 s-1
integrated rate law [A] = –kt + [A]0 ln [A] = –kt + ln[A]0
plot needed for linear fit of rate data [A] vs. t ln [A] vs. t

### How do you plot a zero order reaction?

Other graphs are curved for a zero order reaction….Rate Laws from Graphs of Concentration Versus Time (Integrated Rate Laws)

For a zero order reaction, rate = k (k = – slope of line)
For a 1st order reaction, rate = k[A] (k = – slope of line)
For a 2nd order reaction, rate = k[A]2 (k = slope of line)

WHAT IS A in Integrated rate law?

The integrated rate law for our second-order reactions has the form of the equation of a straight line: 1[A]=kt+1[A]0y=mx+b. A plot of 1[A] versus t for a second-order reaction is a straight line with a slope of k and an intercept of 1[A]0. If the plot is not a straight line, then the reaction is not second order.

## What is the integrated rate law for zero order?

A zero-order reaction thus exhibits a constant reaction rate, regardless of the concentration of its reactants. The integrated rate law for a zero-order reaction also has the form of the equation of a straight line: [A] = − kt + [A]0 y = mx + b

## How do you calculate rate law?

the rate law can be expressed as: Rate = k[A] y[B] z. The proportionality constant, k, is known as the rate constant and is specific for the reaction shown at a particular temperature. The rate constant changes with temperature, and its units depend on the sum of the concentration term exponents in the rate law.

What is a zero rate law?

In other words, a zero-order reaction has a rate law in which the sum of the exponents is equal to zero. A reaction is zero order if concentration data are plotted versus time and the result is a straight line. The slope of this resulting line is the negative of the zero order rate constant, \\ (-k\\).

### What are some examples of rate law?

A reaction can also be described in terms of the order of each reactant. For example, the rate law Rate = k[NO]2[O2] Rate = k [ NO] 2 [ O 2] describes a reaction which is second-order in nitric oxide, first-order in oxygen, and third-order overall.
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