Reaction Kinetics

Reaction kinetics: Reaction rate of tert-butyl bromine Objective: The purpose of this experiment was to determine the order of t - BB graphically, determine k (rate constant) at 0 ° C. and room temperature, and calculate Ea (activation energy) It was sought. Principle: In this experiment several different chemistry kinetics principles were used. The reaction rate of the chemical formula was experimentally determined. This allows reaction mechanisms (ie order of each component, rate constant, etc.).

Reaction kinetics is a study of chemical reaction rates and reaction rates can vary widely over a wide range of times. Some of the reactions take place at an explosive rate like fireworks explosion (Figure 17.1 "fireworks on the river in the night"), like other barbed wire exposed to rusty strands Other reactions are slow for many years It may happen at speed. Rust barbed wire ".) In order to understand the factors influencing the kinetics and kinetics of chemical reactions, we should first investigate what occurs during the reaction at the molecular level, in the reactive collision theory According to, the reaction occurs when the reactant molecules "collide effectively". In order for "effective collision" to occur, the reactant molecules must be properly oriented in space to promote bond breakage and formation as well as atom rearrangement. Leading to the formation of product molecules (Figure 17.3 "Visualization of Collisions")

The theory of gas phase dynamics proposes the collision theory of bimolecular reaction in the gas phase. This theory suggests that in the reaction between the two gaseous substances A and B, the A molecule must collide with the B molecule before the reaction takes place. It was found that the collision frequency is proportional to the product. If a reaction occurs each time a collision occurs, the reaction rate is equal to the collision frequency. The reaction rate is much slower than the collision speed

Chemical kinetics and thermodynamics are important issues in the study of chemical reactions. Chemical kinetics helps to find factors that affect reaction rate. It provides us with information about the rate at which a chemical reaction occurs and the sequence of individual chemical events that cause the observed reaction. Normally, in a single reaction like A B, it takes several steps to complete. In other words, it actually includes a chain reaction mechanism, which can include the start, propagate, and end phases, their respective reaction rates can be very different. By examining the actual reaction mechanism, it is possible to correctly express the total reaction rate. It is necessary to estimate it based on thermodynamic data as long as it determines the maximum range in which chemical reactions can be carried out and the amount of heat absorbed or released. Therefore, kinetic and thermodynamic information is very important for reactor design.