QUIZ 2

• What is the boiling point of a liquid?

  The temperature where vapor pressure equals atmospheric pressure
• At what temperature does water boil at 1 atmosphere?

  100° Celsius
• How does altitude affect boiling point?

  Higher altitude lowers atmospheric pressure
• Why is the boiling point lower in mountainous areas?

  Because atmospheric pressure is lower
• What is the melting point of a solid?

  The temperature at which solids turn into liquids
• What happens to liquid particles when more heat is added?

  They move faster and farther apart
• How do ionic solids compare to molecular solids in terms of melting point?

  Ionic solids have higher melting points
• What causes melting in solids?

  Internal heat, not temperature
• What is density a measure of?

  How much matter is in a given volume
• What is the formula for density?

  D = m/v
• What are the units for density?

  g/mL and kg/m²
• How does the density of solids compare to liquids and gases?

  Solids have higher density than liquids and gases
• What causes the different densities of states of matter?

  The distance between the particles
• What is specific gravity?

  The ratio of an object's density to water's density
• What is the density of water at 4° Celsius?

  1 gm/cm³
• How can specific gravity determine if an object will sink or float?

  It compares the object's density to water's density
• Does specific gravity have units?

  No, it has no unit