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CU DENVER / Chemistry / CHEM 2061 / states of matter class 11 notes

states of matter class 11 notes

states of matter class 11 notes

Description

School: University of Colorado Denver
Department: Chemistry
Course: General Chemistry II
Professor: Margaret bruehl
Term: Spring 2017
Tags: Science, Chemistry, class, and notes
Cost: 25
Name: Chapter 11: IMFs (Week 1)
Description: - state of matter - bond polarity - intermolecular forces
Uploaded: 04/14/2017
4 Pages 436 Views 0 Unlocks
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Chapter 11: Liquids, Solids, And Intermolecular Forces

States of matter We also discuss several other topics like sugar sink

Don't forget about the age old question of What is a socially constructed category composed of people who share biologically transmitted traits that members of a society consider important?

   Solid                                Liquid                              Gas

If you want to learn more check out naive realism psychology

Density                 High                 High                 Low                 Physical state =

Shape                         Definite         Indefinite         Indefinite         Strength of forces If you want to learn more check out What is the meaning of heat engine?
We also discuss several other topics like What does the U.S. Health care reform state?

Volume                Indefinite         Definite        Definite         between particles

Strength of IMF        Strong                Moderate         Weak

If you want to learn more check out What are the chemical defenses in animals?

Freedom of Motion

Solid         → vibrate, still locked in place

→ not enough Kinetic energy to overcome the attractive forces (potential E)

Liquid        → limited freedom, move around

→ Enough KE to overcome some PE attractive forces

Gas         → complete freedom

→ KE overcomes PE between the molecules

Phase Change

→ occurs by changing temperature which alters KE of particles, or pressure which alters PE, or both.

Kinetic-Molecular

Potential energy → attraction between particles

     → chemical forces

Kinetic E → movement of particles

→ temperature

Chemical Forces

Intramolecular forces →  strong : ionic and covalent

                → gives rise to chemical properties

→ bonding between atoms in a molecule

Intermolecular forces → attraction between molecules holding them close

→ weak

→ gives rise to physical properties

Bond polarity

Intermolecular Forces 

🞻 Strength of imf affects energy needed for phase change

1. lon-Dipole.

2. Hydrogen bonds

3. Dipole - Dipole

4. Dispersion (London)

5. Dipole -Induced dipole

6. Induced dipole - Induced dipole

ex) relationship of strength                                         stronger

dipole-dipole                                            ↑

dipole-induced dipole                                    ↕

induced dipole-induced dipole                    ↓

weaker

1. lon-dipole

→ attractive force between an ion and polar module

ex)

                Ion                        Polar

2. Hydrogen Bonding

→ type of dipole-dipole

→ attraction between an H bonded to a N,O,F on one polar molecule to a hydrogen on another polar molecule.

ex)

3. Dipole-dipole 

→ attractive force between polar cules.

ex)

Polar                         Polar

4. Dispersion (London)

→ caused by momentary oscillations of e-

→ exists beneun all atoms and molecules 

5. Dipole - induced dipole

→ attractive force between polar alle and non-polar molecule.

        

                Polar                                Nonpolar

6. Induced dipole-induced dipole

→ attractive force between now-polar and non-polar        

ex)  

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