Kinetic theory definition is - either of two theories in physics based on the fact that the minute particles of a substance are in vigorous motion: either of two theories in physics based on the fact that the minute particles of a substance are in vigorous motion. The history of the kinetic theory of gases is a checkered one, and serves to dispel the impression that science always proceeds along a straight and logical path a in 1662 boyle found that for a specified quantity of gas held at a fixed temperature the product of the. Learn kinetic theory of gases with free interactive flashcards choose from 500 different sets of kinetic theory of gases flashcards on quizlet. The kinetic theory of gases - chapter 19 the kinetic theory of gases from the macro-world to the micro-world key contents: ideal gases pressure, kinetic theory and gases - kinetic theory and gases objectives use kinetic theory to understand the concepts of temperature and gas pressure. Properties of gases can be modeled using some relatively simple equations, which we can relate to the behavior of individual gas molecules we will learn about the ideal gas law, vapor pressure, partial pressure, and the maxwell boltzmann distribution.
An ideal gas a gas that exactly follows the statements of the kinetic theory is a gas that exactly follows the statements of the kinetic theory unfortunately, real gases are not ideal many gases deviate slightly from agreeing perfectly with the kinetic theory of gases. Chapter 12 kinetic theory of gases: equipartition of energy and ideal gas law 121 introduction macroscopic description of gas a gas is a system of particles occupying a volume of space that is very large compared to. Kinetic theory may refer to: kinetic theory of gases , an account of gas properties in terms of motion and interaction of microscopic particles phonons , explaining properties of solids in terms of quantal collection and interactions of microscopic particles.
Gas - kinetic theory of gases: 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. The kinetic theory of gases is a model in which molecules move freely with kinetic energy the various properties of a gas can be accounted for (that is, can be calculated) using this. The classical kinetic theory of gases is usually covered in a basic chemistry class the key assumption is: in the absence of significant molecular interactions.
The kinetic theory of gases is concerned with molecules in motion and with the microscopic and macroscopic consequences of such motion in a gas kinetic theory can be used to deduce some of the equilibrium properties of gases, but the methods of statistical thermodynamics are more powerful in that respect. Kinetic theory the kinetic theory of gases is the study of the microscopic behavior of molecules and the interactions which lead to macroscopic relationships like the ideal gas law. According to the kinetic molecular theory of gases, a gas can be compressed much more than a liquid or solid because: a) gas particles move rapidly b) gas particles do not attract or repel one another. The kinetic theory of gases makes the transition between the microscopic world of molecules and the macroscopic world of quantities like temperature and pressure it starts out with a few basic postulates regarding molecular behavior, and infers how this behavior manifests itself on a macroscopic level. Kinetic theory of gases definition, a theory that the particles in a gas move freely and rapidly along straight lines but often collide, resulting in variations in their velocity and direction pressure is interpreted as arising from the impacts of these particles with the walls of a container see more.
Kinetic theory may refer to: kinetic theory of gases , an account of gas properties in terms of motion and interaction of microscopic particles phonons , explaining properties of solids in terms of quantal collective motions and interactions of microscopic particles kinematics , the part of mechanics that describes the motion of points. The kinetic molecular theory postulates the experimental observations about the behavior of gases discussed so far can be explained with a simple theoretical model known as the kinetic molecular theorythis theory is based on the following postulates, or assumptions. Kinetic molecular theory explains the macroscopic properties of gases and can be used to understand and explain the gas laws learning objectives express the five basic assumptions of the kinetic molecular theory of gases.
The behavior of ideal gases is explained by the kinetic molecular theory of gases molecular motion, which leads to collisions between molecules and the container walls, explains pressure, and the large intermolecular distances in gases explain their high compressibility. Pump gas molecules to a box and see what happens as you change the volume, add or remove heat, change gravity, and more measure the temperature and pressure, and discover how the properties of the gas vary in relation to each other. Kinetic temperature the expression for gas pressure developed from kinetic theory relates pressure and volume to the average molecular kinetic energycomparison with the ideal gas law leads to an expression for temperature sometimes referred to as the kinetic temperature this leads to the expression where n is the number of molecules, n the number of moles, r the gas constant, and k the. The kinetic molecular theory of gases describes this state of matter as composed of tiny particles in constant motion with a lot of distance between the particles because most of the volume occupied by a gas is empty space, a gas has a low density and can expand or contract under the appropriate influence.