Gas Stoichiometry Unit

Slides:

Advertisements

Similar presentations

Real Gases. The ideal gas equation of state is not sufficient to describe the P,V, and T behaviour of most real gases. Most real gases depart from ideal.

Advertisements

Gas Stoichiometry. Random Thoughts 1) We live immersed in a gaseous solution.

GASES Question 1: 1994 B Free Response

Kinetic Molecular Theory (KMT) Speculates about the behavior about individual gas particles.

The Ideal Gas Law. What is an ideal gas? They do not condense to liquids at low temperatures They do not condense to liquids at low temperatures They.

The Gaseous State Chapter 12 Dr. Victor Vilchiz.

Gas Law Example Problems Mrs. Diksa/Miss Santelli.

Chapter 18 Ideal vs. Real Gases. Variables Affecting Gases 4 Variables: 1.Pressure 2.Volume 3.Temperature 4.Number of particles By changing any one of.

Lecture 1910/17/05 Seminar today Review Session?.

Speed of Gases. Speed of Gases Root Mean Square Speed of Gases R = J *K / mol J = 1kg * m2 / s2 MM = molar mass.

Real vs. Ideal Gas Under what types of pressure do gases behave ideally? Under what type of temperatures do gases behave ideally? We originally defined.

Chemistry 231 Real Gases. The ideal gas equation of state is not sufficient to describe the P,V, and T behaviour of most real gases. Most real gases depart.

Mixtures of Gases Dalton's law of partial pressure states: –the total pressure of a mixture of gases is equal to the sum of the partial pressures of the.

Do Now: What is KMT, Kinetic Molecular Theory

Real gas 1.molecules not always in motion (condense phase can be formed) 2.molecular size is non-negligible (there is molecular repulsion) 3.Molecules.

Lesson 4: Ideal Gas Law This lesson combines all the properties of gases into a single equation.

Ideal Gas Law (Equation):

Unit IX: Gases… Part II Chapter 11… think we can cover gases in one day? Obviously not… since this is day 2… but let’s plug away at it!

1 Chapter 12 : Day 2 IDEAL GAS LAWIDEAL GAS LAW. 2 Using KMT to Understand Gas Laws Recall that KMT assumptions are Gases consist of molecules in constant,

Assumptions of Ideal Gases: The molecules of an ideal gas are very small, so their volume is assumed zero. There is so much space between the molecules.

Section 13.2 Using Gas Laws to Solve Problems. Section 13.2 Using Gas Laws to Solve Problems 1.To understand the ideal gas law and use it in calculations.

Real Gases. The ideal gas equation of state is not sufficient to describe the P,V, and T behaviour of most real gases. Most real gases depart from ideal.

Chapter 5: The Gaseous State Chemistry 1061: Principles of Chemistry I Andy Aspaas, Instructor.

Root Mean Square Velocity (urms)

حرارة وديناميكا حرارية

Ideal Gases. Ideal Gas vs. Real Gas Gases are “most ideal”… at low P & high T in nonpolar atoms/molecules Gases are “real”… Under low T & high P when.

Gases Online Lecture Part 3. Kinetic Molecular Theory Four Postulates 1.The particles are ________ in comparison to the space they occupy that the _______of.

Ideal gases: Gas particles do not attract one another Gas particles do not occupy volume There are no ideal gases in real life.

GASES. Gases  The physical state of gases is defined by several physical properties  Volume  Temperature  Amount (commonly expressed as number of.

CHEM 112 Spring 2011 Exam 1 Review.

8.4 The Kinetic Molecular Theory and Real Gas Behavior.

Ideal Gas Law Van der Waals combined Boyle’s and Charles’ Laws.

The Ideal Gas LawThe Ideal Gas Law Section 4.4 Pg

The Ideal Gas Law Ideal Gas  Follows all gas laws under all conditions of temperature and pressure.  Follows all conditions of the Kinetic Molecular.

Gases. Drill  Name the following:   1.HSO 4 -1 __________   2.OH -1 __________   3.ClO 3 -1 __________   4.C 2 H 3 O 2 -1 __________   5.OCN.

Ideal Gas Law Marshall WW-P May Ideal Gas Law O Combined gas law assume a constant amount of gas (moles – (n)) O Could we calculate the # of moles.

Ideal Gas Law CONTINUATION OF THE GAS LAWS. What is an ideal gas?  An ideal gas is a gas that behaves and follows the Kinetic Molecular Theory without.

Collisions with gas particles are elastic.

Topic 9 Gases Densities of Gases © 2009, Prentice-Hall, Inc.

Real Gases Real gases often do not behave like ideal gases at high pressure or low temperature. Ideal gas laws assume 1. no attractions between gas molecules.

Gases Chapter 5 Lesson 3.

10.5 Applications of the Idel Gas Equation

Objectives To learn about atmospheric pressure and how barometers work

Volume Correction The actual volume free to move in is less because of particle size. More molecules will have more effect. Corrected volume V’ = V -

Gas Laws Robert Boyle Jacques Charles Amadeo Avogadro

To understand the Ideal Gas Law and use it in calculations

Pressure and KMT mvx−m(−vx)=2mvx

10.7 – NOTES Ideal Gas Laws.

Chapter 10 Gases: Their Properties and Behavior

Chapter 10 Gases.

Gas Laws For Real Gases.

Ideal Gases 14.3.

Real Gases: Deviations from Ideal Behavior

Objectives To understand the ideal gas law and use it in calculations

Real Gases Real molecules do take up space and do interact with each other (especially polar molecules). Need to add correction factors to the ideal gas.

Gas Laws Robert Boyle Jacques Charles Amadeo Avogadro

St. Charles Community College

States of Matter Lesson 4.6

Ch. 13/14 Pt. 2 IDEAL GAS LAW.

Aim: What conditions would cause a gas to condense?

Real Gases Real molecules do take up space and do interact with each other (especially polar molecules). Need to add correction factors to the ideal gas.

Non-Ideal Behavior (Real gases):

Chem Get Gases MC Practice WS stamped off if you did not do so last class. Unit 8 Test Fri 2/22.

Root Mean Square Velocity (urms)

Chapter 8 Gases The Gas Laws of Boyle, Charles and Avogadro

Gases, cont. (and finished!)

Gases Chapter 10.

Notes Ch Ideal Gases Chemistry.

Presentation transcript:

Gas Stoichiometry Unit Ideal vs. Real Gases Gas Stoichiometry Unit

Gas Law Problems: We have a problem with the gas molecule. Why is this a problem? They show attraction! Can’t in Gas Law Problems They take up space!!! Can’t in Gas Law Problems It’s our Physics problem: “Disregard air resistance” How do you do that?

Real Gases They do exist. They can liquefy - condensation of vapor. They don’t follow gas laws.

Ideal Gases They don’t exist. They can’t liquiefy. They follow the gas laws.

So when do gases behave ideally so we can use them in our gas laws? Where they show no attraction to each other: What conditions would that be?

So when do gases behave so we can use them in our gas laws? Ideally Where they show no attraction to each other: What conditions would that be? 1) Low pressures 2) High temperatures

The building of van der Waal’s equation Real gases have volume, therefore volume available in container is less. These molecules take up some of the space that we calculated for volume of the container.

The building of van der Waal’s equation Real gases have volume, therefore volume available in container is less. These molecules take up some of the space that we calculated for volume of the container. Correction factor for the Ideal Gas Law P (V-nb) = nRT n= # of moles b=correction factor (pg 224: Table 5.3)

The building of van der Waal’s equation Real gases attract each other (law of universal gravitation), therefore not all of them are colliding with container. Pressure is less than what we calculated it to be.

The building of van der Waal’s equation Real gases attract each other (law of universal gravitation), therefore not all of them are colliding with container. Pressure is less than what we calculated it to be. Correction factor for the Ideal Gas Law. (P + a(n/V)2) (V-nb) = nRT a=pressure correction factor n/V = amount of gas you have; you increase the amount, you increase the attraction

The building of van der Waal’s equation Johannes van der Waal won the Nobel Prize for his work on this equation in 1910.

Van der Waal’s Calculate the pressure exerted by 0.5000 mol N2 in a 10.000 L container at 25C, a) using the ideal gas law b) using van der Waal’s equation c) Compare the results