The kinetic theory of gases is a historically significant, but simple, model of the thermodynamic behavior of gases, with which many principal concepts of thermodynamics were established. Identical molecules in random motion molecules obey newtons laws of motion molecules make elastic collisions with each other and with walls of container no force on molecules except during collision what are the principal results of this model. This was the first theory to describe gas pressure in terms of collisions with the walls of the container. L2a 2 current density in terms of velocity of charge. This course is prepared and taught by pradeep kshetrapal sir. At a given temperature, molecules of different gases must all have the same average kinetic energy of translational motion. Evaporation occurs when the fastest moving molecules escape from the surface of a liquid.
Revision notes on kinetic theory of gases askiitians. Gas phase quiz if youre seeing this message, it means were having trouble loading external resources on our website. Xi125 kinetic theory of gases 2015pradeep kshetrapal. Chapter 18 kinetic theory of gases uva public people. Pradeep sir classes presents cbse class 11th physics full course video lectures for students appearing in class 11th. At low densities the pressures become even closer and obey the ideal gas law. In this session, pradeep kshetrapal will cover numerical problems in physics. Lecture 14 ideal gas law and terms of the motion of molecules.
States of matter kinetic theory of gases, kinetic energy, kelvin, pressure, particle motion this lesson plan includes on the kinetic molecular theory of gases. Xi125 kinetic theory of gases 2015 pradeep kshetrapal physics physics, class xi chapter. The present discussion focuses on dilute ideal gases, in which molecular collisions. Back to categories a it was a commonly given for ideal gases b this theory was proposed by bernoulli and next to developed by clausius, maxwell, kroning and boltzmann. Many gases deviate slightly from agreeing perfectly with the kinetic theory of gases. The key idea is that materials have internal energy. Interpretation of pressure on kinetic theory of gases, physics lecture sabaq. Every gas consists of extremely small particles known as molecules. Note 17 the kinetic theory of gases university of toronto. Xi125 kinetic theory of gases 2015 pradeep kshetrapal physics duration. Thermodynamics describes the equilibrium behavior of macroscopicbjects o n terms i of concepts such as work, heat, and entropy. Below the critical temperature, a gas can liquefy if the pressure is high enough. Gas composed of hard spherical particles that are small relative to the mean distances between them.
Kinetic theory of gases theory of gases pressure calculation duration. We intend to provide you with a set of selected question papers that would widen your understanding of kinetic theory of gases. Instructor so i wanna talk to you a little more about the kinetic molecular theory of gases. Particles are in constant motion and have 3 neither attractive nor repulsive forces exist kinetic energy. Kinetic molecular theory of gases introductory chemistry.
Xi1012 kinetic theory 1 2014pradeep kshetrapal physics. Download bansal classes physics modules for jee mains. Pradeep sir classes presents cbse class 11th physics full course video lectures for. Assumptions of kinetic theory of gases a all the gases are made up of molecules moving randomly in all the direction.
Kinetic molecular theory of gases video khan academy. The assumptions of the kinetic theory of gases are a gas consists of a large number of molecules in rapid, random motion. The kinetic theory of gases provides methods for calculating lyapunov exponents and other quantities, such as kolmogorovsinai entropies, that characterize the chaotic behavior of hardball gases. The force of attraction between any two molecules of a solid is very large. Kinetic theory of gases classroom lecture by pradeep kshetrapal. We already saw the thermodynamic one as dq divided by t meaning ds. The power point covers the important aspects of kmt and gas pressure. The kinetic theory of gases has developed a model which explains the behaviour of molecules, which should further explain the behaviour of an ideal gas. So the first four topics of the course thermodynamics, probability, this kinetic theory of gases, and basic of statistical physics. An ideal gas a gas that exactly follows the statements of the kinetic theory.
We shall see the need of a new, modern, quantum, physics. At the triple point, all three phases are in equilibrium. Free pdf download of hc verma solutions for class 12 physics part2 chapter 24 kinetic theory of gases solved by expert physics teachers on. Kinetic theory of gases a it was a commonly given for ideal gases b this theory was proposed by bernoulli and next to developed by clausius, maxwell, kroning and boltzmann. This website has been created for the sake of helping iitjee aspirants to download study materials pdfs, ebooks for free. A kinetic theory of gases and liquids the main object of this book is to formulate a kinetic theory of certain properties of matter, which shall apply equally well to matter in any state. Start studying 5 points of kinetic molecular theory of gases. If you continue browsing the site, you agree to the use of cookies on this website. Apr 22, 2019 assumptions of kinetic theory of gases.
Instructor so i wanna talk to you a little more about the kineticmolecular theory of gases. Kinetic theory explains the behaviour of gases based on the idea that the gas consists of rapidly moving atoms or molecules. In case of uniform flow of charge through a crosssection normal to it as i nqva so, nqvn a i j or j nq v with. Explore various courses on physics from indias top educators on unacademy. Tricks to solve numericals in physics unacademy indias largest. Kinetic theory of gases grade 11 physics notes khullakitab. All the exercise of chapter 24 kinetic theory of gases questions with solutions to help you to revise complete syllabus and score more marks.
If youre behind a web filter, please make sure that the domains. Neither attractive nor repulsive forces exist between the particles except on contact collision. Such a model describes a perfect gas and its properties and is a reasonable approximation to a real gas. Thermodynamics describes the equilibrium behavior of macroscopicbjects o. This page contains revision notes on kinetic theory of gases. Applications of the kinetic theory to gases, vapors, pure liquids, and the theory of solutions this book is written by william pingry boynton and presupposes a moderate acquaintance with the fundamentals of physics and chemistry, and a mathematical equipment involving familiarity with the differential calculus and at least the notation of the. Next articlepdf download pradeep kshetrapal sir genius notes jeemain. The main postulates of kinetic theory of gases are as. Thermodynamics deals with energy transfer processes. According to this theory, gases are made up of tiny particles in random, straight line motion. On colliding in a closed container the gas molecules a transfer momentum to the walls. Galileo galilei law of inertia italy archimedes principle of buoyancy, principle of lever greece james clerk maxwell electromagnetic theory, light is an em wave. Pradeep kshetrapal, last updated 05aug2019, language. Gas phase quiz practice kinetic theory khan academy.
May 08, 2018 kinetic theory of gases kinetic interpretation of temperature. Schekochihiny the rudolf peierls centre for theoretical physics, university of oxford, oxford ox1 3np, uk merton college, oxford ox1 4jd, uk compiled on april 2020 these are the notes for my lectures on kinetic theory and statistical physics. The various properties of a gas can be accounted for that is, can be calculated using this molecular model. Physical world physical world2 unit dimensions and measurement motion in one dimension motion in two dimension laws of motion work energy power and collision rotational motion gravitation elasticity surface tension theory surface tensionpractice problem fluid mechanics practice problem thermodynamics simple harmonic motion wave motion electrostatics electrostatics formula current. It is the type of matter which has got fixed volume but no fixed shape. Class 11 kinetic theory of gases notes freeguru helpline. Relate to the 1st law of thermodynamics thermal expansion cracking the nut. Pdf download pradeep kshetrapal sir genius notes jeemain. In gases the intermolecular forces are very weak and its.
Select your chapter from the below list and start reading. Average kinetic energy equation contains three constants 32, r, na and only one variable, the temperature t. Reif ends with a much wider ranging discussion of kinetic theory, transport and stochastic processes. Lectures on kinetic theory of gases and statistical physics. The average kinetic energy of molecules in a gas is proportional to the temperature. Kinetic theory of gases kinetic interpretation of temperature. The actual atomic theory got established more than 150 years later. They move rapidly and continuously and make collisions with each other and. Even cold, wintry air has kinetic energy, even if it doesnt feel like it. The kinetic theory of gases is a model in which molecules move freely with kinetic energy. Kinetic theory of gases classroom lecture by pradeep. The aim of kinetic theory is to account for the properties of gases in terms of the forces between the molecules, assuming that their motions are described by the laws of mechanics usually classical newtonian mechanics, although quantum mechanics is needed in some cases.
What this basically says is that the macroscopic properties of a gas, like the pressure or the volume or the temperature are just a result of the microscopic properties of the gas molecules, like the position and the speeds of these molecules. Chapman and cowling, the mathematical theory of nonuniform gases lifshitz and pitaevskii, physical kinetics both of these are old school. This course contains video lectures which explaining concepts and knowledge of this subject. English description molecular nature of matter, behaviour of gases, kinetic theory of an ideal gas, law of equipartition of energy, specific heat capacity, mean free path. Notes on thermodynamics the topic for the last part of our physics class this quarter will be thermodynamics. Free kinetic theory books download ebooks online textbooks. Collisions between molecules and with their container are perfectly elastic. Chapter 18 kinetic theory of gases university of virginia. In gases the intermolecular forces are very weak and its molecule may fly apart in all directions. Ideal gases experiment shows that 1 mole of any gas, such as helium, air, hydrogen, etc at the same volume and temperature has almost the same pressure.
The theory that achieves this is a marvel of classical physics. In each one of them, you will define some version of entropy. Pradeep kshetrapal current electricity 7 1 unit and dimension. Lecture 14 ideal gas law and terms of the motion of. Hc verma class 12 physics part2 solutions for chapter 24. Xi125 kinetic theory of gases 2015pradeep kshetrapal physics.
Pdf buy jh sir physical chemistry notes for class 11 jee. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The kinetic theory of gases also known as kineticmolecular theory is a law that explains the behavior of a hypothetical ideal gas. We use the kinetic theory of gases to peer through the galaxy of the ideal gas law to look at the stars within. The molecules of a given gas are all identical but are different from those of another gas. This is possible as the interatomic forces, which are short range forces that are important for solids and liquids, can be neglected for gases. The model describes a gas as a large number of identical submicroscopic particles atoms or molecules, all of which are in constant, rapid, random motion. Kinetic theory of gases this is a statistical treatment of the large ensemble of molecules that make up a gas. Kinetic theory of gases 3 hours slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Kinetic theory of gases equation, assumption, concept.
Kinetic theory of gases paper 4 selection of good quality mcqs multiple choice questions for test preparation is an important task. As an example, the number density n of a gas at room temperature t and one. In this article let us discuss the kinetic theory of gases and the assumptions considered for the kinetic theory of gases. So the gas is characterised by the following properties. Kinetic theory of gases part1, classroom lecture by pradeep kshetrapal. But we shall see that the kinetic theory, based as it is on classical newtonian physics, is limited in what it can describe. The molecules of a gas are identical spherical, rigid and perfectly elastic point masses. Think of it as what the ideal gas law would look like when viewed through a. They move rapidly and continuously and make collisions with each other and the walls. Kinetic theory of gases, a theory based on a simplified molecular or particle description of a gas, from which many gross properties of the gas can be derived. If you think the materials are useful, we suggest you to kindly buy these legally from original publishers or owners. Pradeep kshetrapal current electricity genius physics. It is the type of matter which has got fixed shape and volume.