Gen Chem Lesson 2

• State the Properties of Liquids and Intermolecular Forces

  1. Surface Tension
  2. Viscosity
  3. Vapor Pressure
  4. Boiling Point
  5. Molar Heat of Vaporization
• If the intermolecular force of attraction is strong, what is the Surface Tension?

  High
• What is the relationship between Intermolecular force of attraction (IMFA) and Surface Tension?

  Directly Proportional
• What is the relationship between Intermolecular force of attraction (IMFA) and Viscosity?

  Directly Proportional
• What is the relationship between Viscosity and Temperature?

  Inversely Proportional
• If the Temperature is low, the viscosity is?

  High
• What is the relationship between Intermolecular force of attraction (IMFA) and Vapor pressure?

  Inversely Proportional
• What is the relationship between Intermolecular force of attraction (IMFA) and Molar heat of vaporization?

  Directly Proportional
• If the IMFA is weak, what would be the vapor pressure?

  High
• If the IMFA is strong, what would be the vapor pressure?

  Low
• 3 types of Intramolecular forces

  1. Ionic bond
  2. Covalent bond
  3. Metallic bond
• Give 1 Intermolecular Forces of Attraction

  Dipole-Dipole
• Weakest

  London Dispersion
• Strongest

  Hydrogen
• Strong Bond

  Intramolecular Forces of Attraction
• Weak Bond

  Intermolecular Forces of Attraction
• Forces that causes the molecules on the surface ; form a layer

  Surface Tension
• Lock into a thin layer

  Surface molecules
• Reason why a drop of liquid is spherical

  Surface Tension
• A substance with very high tension

  Water
• Resistance of fluids to flow

  Viscosity
• If the flow of a liquid is readily/ easily, what would be the viscosity?

  Low
• Resulting from evaporation

  Vapor pressure
• A liquid that quickly evaporates

  Alcohol
• Vapor pressure of liquid is equal to atmospheric pressure

  Boiling point
• More collision =

  Greater pressure
• the amount of heat needed to turn 1g of a liquid into a vapor, without a rise in the temperature of the liquid.   

  Molar heat of vaporization
• A process where heat is supplied and the temperature remains constant

  Endothermic
• What is Endothermic? 

  A process where heat is supplied and temperature remains constant
• What's the relationship between vapor pressure and boiling point?

  Inversely Proportional
• What is the relationship between Intermolecular force of attraction (IMFA) and Boiling Point?

  Directly Proportional
• What is the relationship between Vapor Pressure and Boiling Point?


  Inversely Proportional