Which of the following refer to the basic categories associated with the energy of a single molecule in a gaseous phase? 1234567891011121314151617181920.

Slides:

Advertisements

Similar presentations

Properties of Covalent (Molecular) Substances. Properties Depend on strength of IMF between “particles” or separate units covalent substances: – units.

Advertisements

Molecular Bonds Molecular Spectra Molecules and Solids CHAPTER 10 Molecules and Solids Johannes Diderik van der Waals (1837 – 1923) “You little molecule!”

1 Physical Chemistry III Molecular Interactions Piti Treesukol Chemistry Department Faculty of Liberal Arts and Science Kasetsart University :

States of Matter The fundamental difference between states of matter is the distance between particles.

Unit 1 Elements test. Go to question:

The difference between an ionic bond and a covalent bond is Q ionic bonds are only found in crystals such as sodium chloride (NaCl) where there.

Happyphysics.com Physics Lecture Resources Prof. Mineesh Gulati Head-Physics Wing Happy Model Hr. Sec. School, Udhampur, J&K Website: happyphysics.com.

Chapter 14 Liquids and Solids. Three types of bonding between atoms Covalent – electrons shared between nonmetal atoms, forms molecules or covalent crystal.

P461 - Solids1 Solids - types MOLECULAR. Set of single atoms or molecules bound to adjacent due to weak electric force between neutral objects (van der.

Physics for Scientists and Engineers, 6e Chapter 43 - Molecules and Solids.

Dr. Jie ZouPHY Chapter 43 Molecules and Solids.

Periodicity of Atomic Properties Elements in the same group have the same number of valence electrons and related electron configurations; hence have similar.

2.4 Intermolecular Forces

P461 - Molecules1 MOLECULES BONDS Ionic: closed shell (+) or open shell (-) Covalent: both open shells neutral (“share” e) Other (skip): van der Waals.

CH 15 HW: CH 15: 1,5,13-17 SUGGESTED: 4, 9, 11 Liquids, Solids, and Van der waals (Intermolecular) Forces.

Intermolecular Forces and Liquids and Solids Chapter 11.

$1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 Welcome.

Aim: What holds molecules to each other? DO NOW: EXPLAIN WHY A MOLECULE CONTAINING POLAR BONDS IS NOT NECESSARILY A POLAR MOLECULE. GIVE AN EXAMPLE OF.

Lesson 5: Aim and Objectives Aim: How are ionic bonds differently depicted than covalent bonds? Objectives: 1.Learn to draw Lewis Dot Structures for ionic.

BONDING Bond types bond energies

29-1Bonding in Molecules *When atoms cling together as a single unit to achieve lower energy levels, this is a chemical bond. *Bonds occur as ionic an.

Solid State Physics Yuanxu Wang School of Physics and Electronics Henan University 双语教学示范课程.

Molecular bonding. Molecular Bonding and Spectra The Coulomb force is the only one to bind atoms. The combination of attractive and repulsive forces creates.

Bond Types. Bond Types: At the conclusion of our time together, you should be able to: 1. Identify 5 different bond types 2. Explain each bond type 3.

Electronegativity and Polarity Section 9-5. Electron affinity Tendency of atom to accept electron Usually increases as atomic numbers increase within.

ELECTRON AND PHONON TRANSPORT The Hall Effect General Classification of Solids Crystal Structures Electron band Structures Phonon Dispersion and Scattering.

COVALENT BONDS, DRAWING AND NAMING MOLECULES, AND MOLECULAR SHAPES COVALENT COMPOUNDS.

Intermolecular Forces. Forces that hold solids and liquids together may be ionic or covalent bonding or they may involve a weaker interaction called intermolecular.

Extended Questions- The Answers

What determines whether two atoms will form a bond? How can a hydrogen atom, which has one valence electron, bond w/ a chlorine atom, which has seven.

Aim: What holds molecules to each other? DO NOW: TAKE OUT THE SHEET FROM YESTERDAY. TURN TO THE BACK PAGE. STATE IF THE MOLECULES IN THE CHART ARE POLAR.

The Intermolecular Forces (forces between molecules) In general, the weaker the intermolecular forces, the less energy which is required for the substance.

Intermolecular Forces of Attraction AP Chemistry 2 SNSH Spring 2000.

Lecture 2.0 Bonds Between Atoms Famous Physicists’ Lecture.

The Intermolecular Forces (forces between molecules) In general, the weaker the intermolecular forces, the less energy which is required for the substance.

Intermolecular Forces Chemistry 11 Ms. McGrath. Intermolecular Forces The forces that bond atoms to each other within a molecule are called intramolecular.

Condensed Phases and Intermolecular Forces. Let’s look at particle diagrams of liquids & solids and compare them to particle diagrams of gases.

Chemical Bonding. Covalent Bonds Formed when 2 atoms share electrons.

What are Intermolecular forces? Intermolecular forces are weak forces of attraction between some covalent molecules. These attractions are responsible.

Chemical Bonding. Covalent Bonds Formed when 2 atoms share electrons Occurs most often between nonmetals.

Origin of energy band formation:

Chapter 6.2. Two Types of Forces with Compounds Intramolecular Forces the forces of attraction that hold the atoms together in a molecule. Ex. ionic bonds,

Chemical Bonding Unit IV. I. Chemical Bonds: are attractive forces that hold atoms and/or compounds together. result from the simultaneous attraction.

UNIT 7-Part C: Intermolecular Forces (IMF’s) and Phase Changes.

Why do molecules form? Molecular bonds Rotations Vibrations Spectra Complex planar molecules Molecules CHAPTER 9 Molecules Johannes Diderik van der Waals.

Intermolecular Forces Chemistry 11 Ms. McGrath. Intermolecular Forces The forces that bond atoms to each other within a molecule are called intramolecular.

Chapter Energy Bands and Charge Carriers in Semiconductors

Intermolecular Forces

Question on Van der Waals Interactions

Implications of QM for chemistry

Intermolecular Forces

Chemical Bonding.

Covalent Bonds, Drawing and Naming Molecules, and Molecular Shapes

Intermolecular forces

M.Mubeen MME M.Muneeb MME Zeeshan Rasool MME

Tightbinding (LCAO) Approach to Bandstructure Theory

Molecular bonding.

Chemical Bond in Metals and Semiconductors

Introduction to Bonding

MOLECULES BONDS Ionic: closed shell (+) or open shell (-)

Properties of Covalent (Molecular) Substances

AP Chemistry Chemistry Basics.

Intermolecular Forces,

Properties of Covalent (Molecular) Substances

Intermolecular Forces

Chemical Bonding.

Intermolecular forces

AP Chemistry Chemistry Basics.

Nonmetals Chapter 19.2.

Properties of Covalent (Molecular) Substances

Presentation transcript:

Which of the following refer to the basic categories associated with the energy of a single molecule in a gaseous phase? electronic, translation, rotation, vibration 2.nuclear, electronic, vibration 3.ionic, rotation, hydrogen, Van der Waals 4.hydrogen, rotation, vibration 5.dipole-dipole, covalent, rotation, translation

How many degrees of freedom does a monatomic molecule have?

What is the order of decreasing hardness according to the type of bonding and the bond strengths in ranking the hardness of solids? covalent, ionic, metallic 2.metallic, ionic, covalent 3.ionic, covalent, metallic 4.metallic, covalent, ionic 5.ionic, metallic, covalent

What is the difference between donor and acceptor atoms in a doped semiconductor? Donor energy levels cannot exist unless acceptor energy levels are present. 2.The donor energy level lies near the valence band and the acceptor energy level lies near the conduction band. 3.The donor energy level lies near the conduction band and the acceptor energy level lies near the valence band. 4.The acceptor energy level lies halfway between the conduction band and the donor energy level. 5.The donor energy level lies halfway between the valence band and the acceptor level.

An energy band in a solid consists of: A large number of electrons so closely spaced that they may be regarded as a continuous band of electric charge. 2.An infinite number of wave functions, with each wave function corresponding to a point in a box. 3.An infinite number of electrons, with each electron corresponding to a point in a box. 4.A large number of energy levels so closely spaced that they may be regarded as a continuous band. 5.An infinite number of levels, with each level corresponding to a point in a box.

Compare vibrational and rotational levels in molecules. Which of the following statements is true? The energy separation between adjacent energy levels is the same in rotational and vibrational levels. 2.The energy separation between adjacent energy levels is greater in rotational than in vibrational levels. 3.The energy separation between adjacent energy levels is inversely proportional with one rotational level for each vibrational level. 4.The energy separation between adjacent energy levels is greater in vibrational than in rotational levels. 5.The energy separation between adjacent energy levels is directly proportional with one rotational level for each vibrational level.

Suppose an electric field is applied to a metal. Which of the following statements is true?

What is the Fermi temperature?

What does the Fermi energy correspond to?

What are the categories the energy of a molecule can normally be divided into? electronic 2.electronic, translational, rotational, and vibrational 3.electronic and vibrational 4.vibrational, electronic and translational 5.vibrational

The energy released when an atom takes an electron is called: Nuclear energy 2.Electron affinity 3.Potential energy 4.Dissociation energy 5.Binding energy

What form can the rotational kinetic energy of a diatomic molecule take?

impossible to determine

impossible to determine

there is no pair of energy levels that are separated by an energy corresponding to this frequency 2.the transition between energy levels that are separated by an energy corresponding to this frequency is not allowed 3.molecules cannot rotate and vibrate simultaneously

is the same as the one in the figure 2.is farther from the gap than in the figure 3.is closer to the gap than in the figure

photons with no other frequencies are emitted 2.photons with lower frequencies are emitted 3.photons with higher frequencies are emitted

A van der Waals dispersion force between helium atoms produces a very shallow potential well, with a depth on the order of 1 meV. At about what temperature would you expect helium to condense?