Chem 1075 Chapter 13 Liquids and Solids Lecture Outline
Slide 2-3 Properties of Liquids
• Unlike gases, liquids_______________respond dramatically to temperature and pressure changes.
• We can study the liquid state and make 5 general observations.
1. Liquids have a ____________________________, but a _______________________________.
• Liquids take the shape of their _________________________________
2. Liquids usually ______________ readily.
• However, not all liquids flow at the ______________________________.
3. Liquids do not ___________________ or ____________________significantly
• The volume of a liquid varies ________________________ as the temperature and pressure
change.
4. Liquids have a ______________________________ compared to gases.
• Liquids are about ______________________ more dense than gases.
5. Liquids that are soluble mix ____________________________________.
• Liquids ____________________________________ than gases but eventually will form a
homogeneous mixture.
Slide 4 Intermolecular Bond Concept
• An intermolecular bond is an attraction___________________molecules, whereas intramolecular
bonds are between atoms ___________________a molecule.
• Some properties of liquids, such as vapor pressure, viscosity, and surface tension, are determined by
the strength of attraction between molecules.
• Intermolecular bonds are _____________________________ than intramolecular bonds.
Slide 5 Intermolecular Bonds
• Recall, that a __________________ molecule has positive and negative charges concentrated in
different regions due to __________________________________________ of electrons in bonds.
• This uneven distribution of electrons in a molecule is called a ___________________.
• Intermolecular attractions result from _________________________________ or
______________________________________dipoles in molecules.
• There are three intermolecular forces:
1.
2.
3.
Slide 6 Dispersion Forces • Dispersion forces, or London forces, are the result of
_________________________________________.
• Electrons are constantly _______________________ and a region
may become temporarily ____________ ________________ and
slightly _________________ while another region becomes slightly
negative.
• This creates a temporary dipole and two molecules with temporary
dipoles are _____________________ to each other.
PDF created with FinePrint pdfFactory trial version http://www.pdffactory.com
