In the previous post, we talked about the concept of chemical equilibrium which is reached when the rates of forward and reverse reactions are equal and thus the concentrations of the reactants and products stay constant. Now, we say that … Read more
Some chemical reactions are reversible, meaning they proceed in both forward and reverse directions. These reactions are shown with double arrows: aA + bB ⇆ cC + dD When the rates of forward and reverse reactions are equal, … Read more
When discussing the reaction order, we mentioned that the rate of a first- and second-order reaction depends on the concentration of the reactant. For example, the rate for a simple first-order reaction can be shown as: A → Products … Read more
A chemical reaction between two molecules occurs when they collide with proper orientation and sufficient kinetic energy. During the collision, the kinetic energy is used to stretch, bend, and ultimately break bonds, initiating the chemical reaction where new bonds and … Read more
The half-life (t1/2) of a reaction is the time required for the concentration of a reactant to drop to one-half of its initial value. The half-life depends on the order of the reaction, and it is obtained from the corresponding … Read more
In the previous post, we talked about the integrated rate law and its use for determining the concentration of a reactant at a given time when the reaction order was provided. Now, there are questions where the reaction order … Read more
Knowing the units of the rate constant is important as it is used often for solving problems related to the rate laws. k Units of a Zero-Order Reaction Zero-order indicates that the rate does not depend on the concentration, … Read more
We talked about the integrated rate laws in the previous post. Remember, they show the correlation between the concentration of reactants and time. There is a question that I got asked quite a few times when teaching the contacts and … Read more
The integrated rate law of a chemical reaction shows how the concentrations of reactants change with time. For example, you are running a reaction and want to what the concentration of reactant A will be in 1 hour, how long … Read more
We mentioned in the previous post that the order of a reaction can be determined only by experiment. Most often, this experiment consists of measuring the initial rate of the reaction by changing the concentration of the reactant and monitoring … Read more
