Chemical Kinetics Notes for NEET in PDF

Chemical Kinetics is an important part of physical chemistry, having a great weightage in both board and competitive exams. Hence, it is important to have detailed notes for chemical kinetics to streamline the preparation of this topic. This chapter is analytical in nature, giving students a nightmare while understanding its concept. For this, having the expert notes that contain all the relevant segments of this chapter in a simpler way will be better for students to grasp the concepts. To aid students in this matter, our expert faculty for chemistry at Adda 247 has created a detailed note PDF of this chapter covering all the crucial topics. Along with this, a video explanation has also been provided for a better understanding of the students.

Chemical Kinetics Notes

The chemical kinetics notes will help students understand the dynamics of a chemical reaction when it is actually taking place. As it help us get insights on the behavior of the chemical reaction during its run-time, it finds a special place in the higher education syllabus. Numerous facets of cosmology, geology, and perhaps even psychology are related to chemical kinetics. This chapter wields a significant value in both board exams as well as competitive exams. Questions related to this topic are asked in competitive exams like NEET, JEE, and even government job exams. That’s why it is crucial to have chemical kinetics notes so that students can get a better clarity on the topic by timely revision.

Chemical Kinetics

Chemical kinetics is a branch of physical chemistry that studies the reaction rates and factors influencing it. In other words, it help us determine how fast the product will form or how fast the reactant will be consumed in a particular chemical reaction. It also tells us the factors that can affect the rate of a chemical reaction and also explains how it happens. The chemical kinetics is also referred to as reaction kinetics. It also aids in defining the features of a chemical reaction and collecting and analyzing data regarding the reaction’s mechanism. Given the volume of chemical reactions and numerical problems in this chapter, it can appear somewhat daunting. But students visiting this page should not worry at all, as we are here to help them. The PDF notes provided in this chapter has beautifully explained all the chemical reactions and complex numerical in layman terms. By going through the PDF note and video lecture, students will be fully prepared to face any problem related to this chapter for competitive exams like NEET.

Chemical Kinetics Class 12

Chemical kinetics is a crucial chapter of the class 12 NCERT chemistry syllabus. The chapter features at chapter number 4 in class 12 chemistry text book. The chapter deals with various essential themes like zero order reaction, first order reaction, half life, reaction rate theories, etc. The chapter intends to teach students about the essentials of chemical reaction in context of time. To learn the characteristic of a chemical reaction, it is of utmost importance to learn this chapter by heart. This chapter has high weightage in the board exam, so, one need to prepare this concept thoroughly for the board exam.

Chemical Kinetics Class 12 Notes

The notes of chemical kinetics will help students in understanding all of its concept with ease. These notes will help students crack the NEET exam with ease. Along with this, students will also be able to solve all the questions related to the board level exam on this topic. Some important notes on this chapter is given hereunder.

• The study of chemical reaction rates, or how quickly a reaction happens, as well as the variables that influence it and the process by which it happens, is known as chemical kinetics.
• The change in reactant or product concentration per unit of time is known as the rate of reaction.
  An overall response is A+B –> C.
  The reaction’s rate is given by: (-ΔA)/Δt or (-ΔB)/Δt or (+ΔC)/Δt
• The SI unit of the rate of reaction is mol L^-1s^-1
• With the exception of zero order reactions, the rate of reaction is not a constant. The reaction moves ahead, causing it to decrease.
• The molar concentration of one or more reactants and the reaction rate are expressed mathematically by a rate law. If there are two reactant X and Y in the reaction, then the rate las is given as: ds/dt = k[X]^a[Y]^b .The total order of reaction is represented by a + b, where a and b are experimentally determined and denote the order of reaction with respect to X and Y, respectively.
• The rate constant represents the rate of reaction at a unity concentration of all reacting species. ‘K’ is used to signify it. It is also known as the response’s velocity constant or particular reaction rate.
• In the rate equation (or rate law) of the reaction, the order of the reaction is the total of the exponents to which the concentration terms are raised. Any whole integer, 0, or a fraction can be used.
• The number of responding particles—atoms, molecules, or any other species—that collide at the same time to cause a chemical change is known as the modularity of the reaction. It is an idea that is speculative. It always has a whole number value. Three is never the maximum. Zero is not an option.
• First order reaction: If only one concentration term changes to determine a reaction’s rate, it is referred to be a first order reaction.
• The reactant concentration as a function of time is expressed by the integrated rate equation.
• Zero order reaction: Reactions in which the rate of reaction remains constant while the reactant concentration changes. The rate law of this kind of reaction is written as. Rate is equal to k [A]°[B]°.
• Half life period: This is the amount of time needed for the reactant’s initial concentration to drop to half its original value.
• It has been discovered that the rate constant roughly doubles for a chemical reaction when the temperature rises by 10 °C.
• The ratio of a reaction’s rate constants at two temperatures that are 10°C apart is the reaction’s temperature coefficient. Typically, two readings are made at 35 °C and 25 °C.
• The Arrhenius equation, K=Ae^(-Ea/Rt), can be used to depict how rate constants vary with temperature. A is referred to as the frequency factor, while Ea is the energy of activation.
• The collision theory and the transition state theory are the two key theories of reaction rates.

Factors Affecting the Rate of Reaction

There are several factors that might affect the rate of reaction as per the chemical kinetics. The name of these factors are given hereunder.

• Catalyst
• Temperature
• Reactants’ Nature
• Reactants’ Concentration
• Surface Area of Reactants
• Nature of Solvent

Chemical Kinetics Notes PDF for NEET

The chapter on chemical kinetics is included in the NEET syllabus due to its greater significance in real-life scenario. From this chapter, 2-3 direct questions are featured in the NEET exam. It is about 5%-8% of total weightage of the chemistry section of the NEET. Hence, by preparing this chapter through the lecture notes PDF and the video given below, students will be able to fetch around crucial 8-12 marks.

Click to Download Chemical Kinetics Notes for NEET

Chemical Kinetics Video for NEET

To help students in their preparation journey, the Chemistry faculty at Adda 247 for the NEET exam has made a dedicated video on this topic. The video lecture contains all the important details of chemical kinetics along with important previous year questions with solutions.

Sharing is caring!