chemical kinetics

Half Life of a Reaction - Half life of a reaction is defined as the time required for reducing the concentration of a reactant to half its initial value. It is denoted as t 1 / 2 . As discussed before, the t 1 / 2 of a zero order reaction is given as In general, for a reaction of order n, t 1 / 2 i..

It has been mentioned earlier that a catalyst usually increases the rate of reaction. A catalyst is not consumed in the reaction, it is used up in one step and then released in the next step. Catalytic reactions can be classified into two types. They are i) Homogenous reactions and ii) Heterogenous..

All radioactive decays follow first order kinetics. Therefore, the half-life of a radioactive element is independent of the amount of sample. With the help of half-life values of a suitable radioisotope of an element, which is present in a rock, or in an artefact, the age of the rock and ..

This occurs in reactions where the reaction rate increases as a product is formed. An example of autocatalystic reaction is the Belousov-Zhabotinskii (BZ) reaction. The product HBrO 2 is the reactant in step I. Another example of autocatalysis is the reaction of potassium permanganate with oxalate ..

Autocatalysis - This occurs in reactions where the reaction rate increases as a product is formed. An example of autocatalystic reaction is the Belousov-Zhabotinskii (BZ) reaction. The product HBrO 2 is the reactant in step I. Another example of autocatalysis is the reaction of potassium permangana..

In this theory, the rate constant is related to three factors Z, f and p by the equation k = Zfp b (19) where Z is the collision frequency f is the fraction of collisions having energy greater than the threshold energy and p is the fraction of the collisions that occurs with the reactant molecules ..

There are different forms of energy like for example, mechanical energy, heat energy, electrical energy and chemical energy. In this chapter, we shall study about mechanical energy. Kinetic energy and potential energy are the two types of mechanical energ..

Fractional Order Reaction or Complex Order - Example 7: Hydrogen (H 2 ) gas reacts with bromine (Br 2 ) gas to give hydrogen bromide vapor. The chemical reaction is represented by the equation as follow..

The rate of a reaction is determined by measuring the concentration of the reactant or product at different intervals of time. The concentration is measured, by measuring a related property such as color, pressure or volume (as in the case of gas phase reactions), pH, optical rotation, electrical c..

Chemical Kinetics..