Half Life Equation First Order at Life

Half Life Equation First Order. As the half life is always constant for a first order process, then the rate constant of the reaction can be related to the half life by a simple equation: Notice how it takes the same amount of time for the concentration to decrease between points.

So we have the negative of that, so we get a positive value here for our half life. Now let's think about this. Converting a half life to a rate constant;

Finding halflife for a first order reaction Science

T 1 2 = ln ⁡ 2 ⋅ v d c l {\displaystyle t_{\frac {1}{2}}={\frac {{\ln 2}\cdot {v_{d}}}{cl}}\,} T 1 /2 = 0.693/k. Notice how it takes the same amount of time for the concentration to decrease between points. T = t1/2 and [a] t = ½ [a] 0.