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CHAPTER 10. GASES AND KINETIC-MOLECULAR THEORY. CHAPTER GOALS. Comparison of Solids, Liquids, and Gases Composition of the Atmosphere and Some Common Properties of Gases Pressure Boyle’s Law: The Volume-Pressure Relationship

Announcements. Exam #1: Tonight!, 7:00-8:30pm, 114 David Kinley Hall (DKH), bring ID Conflict Exam: 5:00-6:30pm, 140 Burrill Hall, bring ID No Lab this week Lecture on Thursday (Read Chapter 6)

Gases. Chapter 12. Gases. Properties: Gases are fluids because their molecules/atoms can flow Gases have low density Highly compressible – their volume can be reduced Gases will completely fill their container. Gases. Gas Pressure

Gases. Mr. Solsman Chapter 13. Gases. The Nature of Gases The Molecular Basis of Gas Behavior Pressure Compressibility Diffusion. The Nature of Gases. Gases expand to fill their container. Gases exert pressure on their container. Gases are compressible.

GASES. Chapter 10. The Atmosphere. The atmosphere is a gaseous solution of nitrogen, N 2 , and oxygen, O 2 .

CHAPTER 14. Gases. 14.2 The Gas Laws. Mostly empty space No interaction between gas atoms or molecules except in collisions Straight trajectories until collision occurs. Gases consist of widely separated atoms or molecules in constant, random motion. Mostly empty space

Chapter 14 Gases. The Combined Gas Law Volume and Moles (Avogadro’s Law) Partial Pressures. Combined Gas Law. P 1 V 1 = P 2 V 2 T 1 T 2 Rearrange the combined gas law to solve for V 2 P 1 V 1 T 2 = P 2 V 2 T 1 V 2 = P 1 V 1 T 2

Ideal Monatomic Gas C v = 3/2R C p = C v + R = 5/2 R Polyatomic Gas C v > 3/2R C p > 5/2 R. SUMMARY OF THERMO FORMULAS. All Ideal Gases • D E = q + w • w = -P ext D V (for now) • D E = nC v D T = q V • D H = nC p D T = q P If D T = 0, then D E = 0

Chapter 10 Gases. 1.6. m. x ________. s 2. 10.2 Pressure. Force = mass x acceleration

CHAPTER 9. GASES: Their Properties and Behavior. Pressure. force per unit area Standard Pressure 760 mm Hg 760 torr 76 cm Hg 1 atmosphere 29.925 inches Hg 101.3 kPa 1.013 bar. density Hg = 13.6 g/mL. Evangelista Torricelli observed the first vacuum in 1643. Boyle’s Law.

Welcome to. WHO WANTS TO BE A MILLIONAIRE?. Opening Question. Chemistry is the study of …. Matter and the changes it undergoes. For $100. When a chemical system is at equilibrium, it can be described by all of the following EXCEPT. A) dynamic. B) forward rate = reverse rate.

Gases. Chapter 13. Gases. The Nature of Gases The Molecular Basis of Gas Behavior Pressure Compressibility Diffusion. The Nature of Gases. Gases expand to fill their container. Gases exert pressure on their container. Gases are compressible. The Molecular Basis of Gas Behavior.

Learning Log. Read “How it Works” on p. 377 of resource text and answer questions #1 and 2. Demos - Its all about pressure. Crushing can Card trick Egg in a flask. V. T. P. Ch. 10 & 11 - Gases. II. The Gas Laws (p. 313-322). Definition of Gas Laws. V. P. P. T. T. V.

Gas Laws. States of matter unit note #2. Physical Characteristics of Gases. Gases have M ass L ow density Compressibility: the most compressible state of matter Diffusion & effusion Diffusion: different gases mix evenly and completely due to their random motion

Homework Problems Chapter 10 Homework Problems: 22, 24, 34, 40, 44, 48, 50, 56, 62, 66, 70, 81, 82, 88, 94, 106, 128. CHAPTER 10 Gases. Properties of Gases

Chapter 12. Behavior of Gases. God made matter, but surfaces were the work of the devil. Wolfgang Pauli. Behavior of Gases. Gases are substances in which intermolec-ular forces are quite weak, and can be over-come by the kinetic energy of the molecules.

Thermodynamics (the other part). Topic 19 in Red Book Chapter 16 in textbook. Why does change occur?. D H – change in enthalpy (heat transferred btwn system and surroundings) D S – change in entropy (randomness or disorder of the system)

Gases and Liquids. Topics. Properties of gases Gas laws Gas Stoichiometry Diffusion / Effusion, defined Liquids - properties. The Properties Of Gases. Gases exert pressure Gases can be compressed A gas takes up the volume of the container it is in. Gases have no free surfaces

Chapter 5. Thermochemistry. Thermodynamics. Study of the changes in energy and transfers of energy that accompany chemical and physical processes. address 3 fundamental questions Will two (or more) substances react when they are mixed under specified conditions?

Chapter 8. Thermochemistry. Thermodynamics. Study of the changes in energy and transfers of energy that accompany chemical and physical processes. address 3 fundamental questions Will two (or more) substances react when they are mixed under specified conditions?