Skip to main content

Chemical Kinetics: A key branch of Physical Chemistry

The feasibility of a given reaction can be predicted with the help of their dynamic principles. Besides this the relative amount of reactants and products at equilibrium position of the reaction can also be predicted. In addition, we can predict whether changes in the experimental conditions will increase or decrease the amount of products at equilibrium. However, thermodynamic principles do not provide any information regarding the speed of the given reaction, i.e., how much time a given feasible reaction will take for its completion. Moreover, it is not possible to predict how the speed of a given reaction gets affected by changing the experimental conditions. The study of rate of reaction or by changing the experimental conditions. 

The study of rate of reactions including its dependence on the concentration. The important topic of physical chemistry is known as chemical kinetics. The important application of the study of rate of reaction is to use the kinetic data in establishing the molecular pathway or mechanism by which the reaction takes place. Chemical kinetics is essential for CSIR NET Coaching in Chemistry. It is also very useful for Chemistry JAM coaching.Rate of Reaction and Rate of Reaction Divided by Constant Volume 

Average Rate of the Amount of a Reactant or a Product

Reactions with wide difference in speeds are known. Some reactions proceed at very fast speed and some are very slow. It depends on reactants concentration, nature of reactants, temperature, nature of products formed, surface area, catalyst and surface area of reactants. In some cases, the speed is so fast that the reaction appears to be instantaneous, e.g., reactions are known which proceed at very slow speeds. Kinetics is the most versatile branch of Chemistry.It is very essential for CSIR NET Coachinhg in Chemistry, also very very useful branch of Chemistry for ‘Chemistry JAM coaching’      

Comments

Popular posts from this blog

Laws of Crystallography: boon in Solid State Chemistry

Laws of crystallography Crystallography is the branch of science which deals with the geometry, properties and structure   of crystals and crystalline substances. It is based on three fundamental laws. The law of constancy of interfacial angles : It states that the size of the faces or even shapes of the crystals of a substance may vary widely with conditions of crystallization yet the interfacial angles between any two corresponding be 90˚ , irrespective of the size and shapes of faces. The measurement of crystal angles is important in the study of crystals. * Interfacial Angles- The crystals are bound by plane faces. The angle between any two faces is called an interfacial angle. It is indicated from the above figure that the shapes of crystals are different but the angle between any two corresponding faces is 90˚. 2. Law of rational indices (Hauy’s law): This law states that “the ratio between the intercepts on the axes for the different faces of a crys

Aspiring to pursue P.G. or PhD in chemistry: choose CSIR/GATE/ IIT JAM

With the high increasing rate of competition with each passing day, it is difficult for the students to cope up with the fear and pressure. But to make the competition simpler and easier all you need is a good guidance and best institute. One really should know about all the possible prospects in chemistry and chemical sciences. Certain topics that hold a major portion of the paper of IIT-JAM, NET, GATE include topics like solid state, organomettalic chemistry, coordination chemistry, stereochemistry and many more. Catching hold over these topics will lead to definite success path in these competitive exams like CSIR-NET, GATE, IIT-JAM. In case of CSIR-NET (or CSIR-UGC-NET/JRF),  the eligible candidates may apply Online through a link available at CSIR, HRDG website: www.csirhrdg.res.in . In order to apply Online the candidates are required to download Bank challan Performa from the above website and then deposit the requisite examination fee in any of the Indian Bank branch

Surface Tension and capillary action, a characteristic property of Liquids

Surface Chemistry, Surface Tension and Capillary Action Surface Tension: → Surface tension is a characteristic of surface of liquids due to which it try to decrease its area. For this purpose, a force of attraction is applied betweem the molecules of liquids on the surface. For this reason, surface of a liquid behave like a stretched membrane. → Consider a molecule P some where in the body of the liquid. This is attracted equally in all dieactions by auther molecules which surround it as shown in fig and therefore cancel the effect of one another. → Consider, next, a olecule R at the surface of the liquid. THe downward attractive force are greater than the upwardr forces because there are more molecules of liquid below than that in air above the surface. These inbalanced atttractive forces acting downward tend to draw the surface mlecules into the body of the liquild and therefore, tend to reduce the surface to a minimum. → It is well know that force of attr