Order Equation Log For Free

If an increase in reactant increases the half life, the reaction has zero-order kinetics. If it has no effect, it has first-order kinetics. If the increase in reactant decreases the half life, the reaction has second-order kinetics.

The integrated rate law for the first-order reaction A ? products is ln[A]_t = -kt + ln[A]_0. Because this equation has the form y = mx + b, a plot of the natural log of [A] as a function of time yields a straight line.

The integrated rate law for the first-order reaction A ? products is ln[A]_t = -kt + ln[A]_0. Because this equation has the form y = mx + b, a plot of the natural log of [A] as a function of time yields a straight line.

If an increase in reactant increases the half life, the reaction has zero-order kinetics. If it has no effect, it has first-order kinetics. If the increase in reactant decreases the half life, the reaction has second-order kinetics.

For first-order reactions, equation ln[A] = -kt + ln[A]0 is the same as the equation of a straight line (y = mx + c) with slope -k.

- Chemistry. The rate constant for the first-order reaction is given by log10 k = 14.34 ? 1.25 × 104 T.

The reaction plotted against different Y-axes is used to determine the order of a reaction. If the line is straight when the Y-axis is concentration, the reaction is zero-order. If the line is straight when the Y-axis is ln(concentration), the reaction is first-order.

If a plot of reactant concentration versus time is not linear but a plot of the natural logarithm of reactant concentration versus time is linear, then the reaction is first order.

For a second order reaction, as shown in the following figure, the plot of 1/[A] versus time is a straight line with k = slope of the line. Other graphs are curved for a second order reaction.

Determine Order from Concentration Time Graph If concentration time graph is a straight line, order of reaction is zero. If concentration time graph is a curve, compare half life. If half life is constant, order of reaction is 1. If half life is not constant, order of reaction is 2.