Kinetic Molecular Theory Images taken from www.bcpl.net/~kdrews/kmt/kmt.

Slides:

Advertisements

Similar presentations

I. Physical Properties (p ) Ch. 10 & 11 - Gases.

Advertisements

Gases.

Introduction to Gases Chemistry2 nd semester. Properties All gases share some physical properties: Pressure (P) Volume (V) Temperature (T) Number of moles.

Gases The Kinetic-Molecular Theory

Kinetic Molecular Theory of Gases and the Gas Laws

Honors Chem Chapters 10, 11, and 12. Kinetic Molecular Theory (KMT) Molecules are constantly in motion and collide with one another and the wall of a.

Kinetic Molecular Theory of Gases Gases consist of molecules that are constantly moving through space in strait lines, randomly, and with various speeds.

I. Physical Properties Ch 12.1 & 13 Gases. Kinetic Molecular Theory 1. Particles of matter are ALWAYS in motion 2. Volume of individual particles is 

Lesson 1: The Nature of Gases UNIT 9 – GAS LAWS Chapter 13 and 14.

Physical Properties Unit 5: Gases Unit 5: Gases. StandardsStandards b 4a. Students know the random motion of molecules and their collisions with a surface.

Section 3.7—Gas Laws How can we calculate Pressure, Volume and Temperature of our airbag?

Gases 1. The Nature of Gases  Gases expand to fill their containers  Gases are fluid – they flow  Gases have low density  1/1000 the density of the.

OCTOBER 20 AIM: What is PRESSURE ? Atmospheric pressure Units Gas pressure.

Chapter 13 States of Matter

Ch. 13 States of Matter Ch The Nature of Gases.

1 How Do Gases Behave? The behavior of gases can be described by the kinetic molecular theory of ideal gases. Gases consist of submicroscopic particles.

Essential Questions for Unit:

Gas Laws Chapter 14 (last one!!) Kinetic Molecular Theory helps explain why gases behave differently than solids and liquids Gases…. 1. Gas particles do.

The Properties of Gases. Properties of Gases 1. Gases expand to fill the container. 2. Gases take on the shape of the container. 3. Gases are highly compressible.

Warm-Up At 20 o C, molecules in the air move over 1000 mph. At this speed, the smell of pizza made in LA should reach our school in about 30 minutes. Why.

THE NATURE OF GASES SECTION 10.1 After reading Section 10.1, you should know: the three assumptions of the kinetic theory how to convert pressure readings.

Gases. Characteristics of Gases Gases are fluids Gases are fluids –In other words, they can flow. Gases have low density Gases have low density –Most.

The Gas Laws A Tutorial on the Behavior of Gases..

Chapter 11 The Nature of Gases & Measuring Gases Pages

Chemistry Modeling Pressure Macro-Scale Pressure is the amount of force exerted over a given area The force exerted is caused by particles collisions.

Gases Properties Kinetic Molecular Theory Variables The Atmosphere Gas Laws.

AssignmentAssignment b Complete pre-assessment test. b Read Chapter 10, pp , and define vocabulary.

KINETIC MOLECULAR THEORY Kinetic Molecular Theory A theory that explains the physical properties of gases by describing the behavior of subatomic particles.

Physical Properties Gases. Kinetic Molecular Theory b Particles in an ideal gas… have no volume. The particles in a gas are very far apart. have elastic.

Chapter 5 Gas- matter that has no definite shape or volume, takes both the shape and volume of its container Kinetic Theory of Gases -states that tiny.

Chapter 13 Notes Kinetic Molecular Theory. Kinetic Theory and Gases Kinetic Energy—Energy that an object has due to motion. The Kinetic Theory states:

I. Physical Properties Gases. A. Kinetic Molecular Theory b kinetic-molecular theory: (def) theory of the energy of particles and the forces that.

I. Physical Properties Gases Gases. A. Kinetic Molecular Theory b Particles in an ideal gas… have no (very small) volume. have elastic collisions. are.

$$$ Quiz $$$ Gases. The tendency of molecules to move toward areas of lower concentration? (Chapter 14.4) diffusion.

KINETIC MOLECULAR THEORY Physical Properties of Gases: Gases have mass Gases are easily compressed Gases completely fill their containers (expandability)

Properties of Gases.

Kinetic Theory and Gases. Objectives Use kinetic theory to understand the concepts of temperature and gas pressure. Be able to use and convert between.

Physical Properties Gases. Kinetic Molecular Theory b Particles in an ideal gas… have no volume. have elastic collisions. are in constant, random, straight-

Gases and their Properties. Kinetic-Molecular Theory Gases = large #’s of tiny particles spaced far apart Gases = large #’s of tiny particles spaced far.

Pressure. The amount of force an object puts on a surface. Pressure is measured by a barometer. Atmospheric pressure comes from air being pulled down.

Absolute Zero Theoretical temperature of a gas when its pressure is zero Kelvin scale – temperature scale where 0 K is absolute zero One degree change.

Unit 7 Gas Laws. Gases Gases (g): Transparent, compressible, expand without limit, have no shape/volume. **Take the shape and volume of their container.

Section 13.3 Using a Model to Describe Gases 1.List the physical properties of gases 2.Use the KMT to explain the physical properties of gases. Objectives.

Kinetic Molecular Theory of Gases.  Kinetic Molecular Theory of Gases- is a model that attempts to explain the properties of an ideal gas.  An ideal.

What is it? The Kinetic Molecular Theory (KMT) is used to explain the behavior of molecules in matter. The relationships between the pressure, volume,

Aim: Explain Kinetic Molecular Theory Notes 12-1.

I. Physical Properties Gases. A. Kinetic Molecular Theory b Particles in an ideal gas… have no volume. The particles in a gas are very far apart. have.

I. Physical Properties (p. 399 – 402, ) Ch Gases Gases notes #1 - gas properties.ppt.

GASES, LIQUIDS, AND SOLIDS STATES OF MATTER. GASES What are gases? Gases have no definite shape or volume. Scientists starting studying gases in depth.

I. Physical Properties (p )

Ch.12- Gases I. Physical Properties.

Pressure and Temperature

I. Physical Properties (p )

I. Physical Properties (p )

Physical Characteristics of Gases

I. Physical Properties (p. 303 – 312 in school)

Kinetic-Molecular Theory

Kinetic Molecular Theory Properties of Gases

Gases Physical Properties.

Characteristics of Gases and KMT

Gas Laws Pressure.

Gases Describing Gases.

Physical Properties of Gases

Chapter 7-1, 7-2.

Physical Characteristics of Gases

TEKS 9A & 9C Gas Laws.

Presentation transcript:

Kinetic Molecular Theory Images taken from

Kinetic Molecular Theory (KMT) Explains the behavior of an IDEAL GAS so that we can describe the nature of real gases.

#1. Gas particles are so small they take up no size and space Volume = 0

#2 Gas particles travel randomly in straight-line motion following laws of mechanics

#3 Collisions between particles are elastic (conserve energy)

#4 The gas particles do not react with each other or the side of the container

#5 The average kinetic energy of the particles is directly proportional to the temperature in Kelvins

Kelvin scale for temperature extrapolates temperature to a point where molecules cease to move

Kelvin scale is also called the absolute temperature scale K = o C + 273

Pressure = Force Area Pounds per square inch (psi) Millimeters of mercury (mm Hg) Atmospheres (atm) Kilo-pascal (kPa)

Atmosphere is the pressure in our normal air at sea level

Pounds per square inch (psi) 14.7 psi = 1.0 atm

Millimeters of mercury (mm Hg) 760 mm Hg = 1.0 atm

Kilopascal measures Newtons / m kPa = 1.0 atm

STP is standard temperature and pressure Always 273 Kelvin and 1.0 atm

Avagadro’s Principle = volume is directly proportional to # molecules