Chemical Kinetics and Reaction Rates
Exploring the significance of reactions kinetics in understanding chemical reactions, practical implications in industry, and how studying reaction rates can lead to process improvements. Examples and explanations provided by Israa Murtadha Hameed.
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Presentation Transcript
Chemistry Chemistry 1 1st stclass class Water Resources department Water Resources department By: Israa Murtadha Hameed Israa Murtadha Hameed
Reactions kinetics Reactions kinetics 6th lecture By: Israa Murtadha Hameed Israa Murtadha Hameed
Reactions kinetics Reactions kinetics There are many experiments designed to illustrate how reactions happen. One of the methods used is chemical kinetics, in which the rate of a reaction is measured. By making changes in the reaction conditions and measuring the effect of the changes on the rate of reaction, we can infer what is going on at the molecular level. Chemical kinetics :is the measurement of how quickly reactions occur. If changes in conditions affect the speed of reaction, we can learn something about how the reaction happens. Israa Murtadha Hameed
Why reactions kinetics is important Why reactions kinetics is important Kinetic studies are important in understanding reactions, and they also have practical implications. For example, in industry, reactions are conducted in reactors in which compounds are mixed together, possibly heated and stirred for a while, and then moved to the next phase of the process. It is important to know how long to hold the reaction at one stage before moving on, to make sure that reaction has finished before starting the next one. Israa Murtadha Hameed
By understanding how a reaction takes place, many processes can be improved. For example, if it is known that a particular intermediate is involved in a reaction, the use of conditions (such as certain solvents) that are incompatible with that intermediate might be avoided. In addition, reagents might be added that would make certain steps in the reaction happen more easily. Israa Murtadha Hameed
Reaction Rates Reaction Rates Reaction Rate: The change in the concentration of a reactant or a product with time (M/s). Since reactants go away with time: Israa Murtadha Hameed
Example: Consider the decomposition of N2O5 to give NO2 and O2: Israa Murtadha Hameed
Reaction Rate and Stoichiometry Reaction Rate and Stoichiometry Israa Murtadha Hameed
Rate Law & Reaction Order Rate Law & Reaction Order Israa Murtadha Hameed
Any Questions? Israa Murtadha Hameed
