PPT-Gases Kinetic Molecular Theory and Gas Laws Learning Objectives

Gases Kinetic Molecular Theory and Gas Laws Learning Objectives Be able to explain behavior of Gases using Kinetic Molecular Theory Explain relationship of volume temperature and pressure Use absolute temperature scale. Mr. Nelson. Chemistry. Properties of Gases. Gases are . fluids. Fluids are . any substance that flows. Gases are highly compressible. Example: . Tire pressure. Gases completely fill containers. Gases have . P. V. . =. . n. R. T. P. . = pressure in . atm. V. = volume in liters. n. = moles. R. = proportionality constant. . = 0.08206 L . atm. / . mol. ·. K. T. = temperature in . Kelvins. . Holds closely at . Chemistry—2. nd. semester. Properties. All gases share some physical properties:. Pressure (P). Volume (V). Temperature (T). Number of moles (n). These properties combine to describe the behavior of gases using the “gas laws”. Gases. August 6, 2011 Robert Iafe. Chemistry in the News. 2. Polymer nicotine trap is composed of a . porphyrin. derivative (black), in which amide pincers (green) are attached to the zinc (violet) containing macrocycle (blue). The nicotine molecule is shown in red.. Dr. N. K. Shukla. Associate Professor. Department of Chemistry. Mahatma Gandhi P.G. College. Gorakhpur-273001. Part I. Connecting the microscopic with macroscopic. Macroscopic properties. Gas is made of atoms or molecules that occupy a much larger space than the size of the constituent particles.. The Kinetic-Molecular Theory of Matter. Gases. Behavior of Atoms. Kinetic-molecular theory. .  . based on the idea that particles of matter are always in motion. Can be used to explain the properties of solids, liquids, and gases in terms of the energy of the atoms and the forces that act between them. How . do gases behave? . How . are gases collected and studied?. What . can we predict about gas behavior?. Introduction and reminder of gases. Fun fact. : The word gas is derived from the Greek . chaos. The SI unit of pressure is the . pascal. (Pa).. . One . standard atmosphere (. atm. ). is the pressure required to support 760 mm of mercury in a mercury barometer at 25°C. . 13.1. 13.1. 13.1. 13.1. Gas Laws The atmosphere is made up of gases so we need to know the basic laws of how gases behave Gas laws describe the relationships between the 4 key parameters describing the behavior of gases Temperature (T) Gas Laws The atmosphere is made up of gases so we need to know the basic laws of how gases behave Gas laws describe the relationships between the key parameters describing the behavior of gases Temperature (T) Gas laws describe the relationships between the 4 key parameters describing the behavior of gases. Temperature (T). : a measure of the . kinetic energy (KE) . of atoms and molecules. (°C, °F). Expressed in °K for calculations.. Particle Theory. All . matter consists of many, very small particles . The particles . are constantly moving or in a continual state of motion. . The . degree to which the particles move is determined by the amount of energy they have and their relationship to other particles. . Kinetic Molecular Theory of Gases. This is the six point model that is used to explain the behavior of gases. Points of the Kinetic Molecular Theory. 1. Gases are composed of atoms or molecules that have mass. As per BS 6164 in 15.6 section. The hazardous nature of gaseous contaminants in the tunnel atmosphere should be taken into account, as some are toxic, flammable/potentially explosive, radioactive or asphyxiant. It should be recognized that some contaminants display a combination of toxic and potentially explosive properties. It should also be recognized that the monitoring and control of such gases in a tunnel atmosphere can be difficult because the concentrations rarely remain constant throughout a working day..