States and State Changes Review (Module 11) Flashcards
Nonpolar covalent molecules only have this type of intermolecular force among them.
London Dispersion Forces
Which is NOT part of the Kinetic Molecular Theory (KMT)?
There are significant forces between gas particles
Temperature is …
a measure of the average kinetic energy of particles.
The natural movement of a fluid from an area of high concentration to an area of low concentration.
Diffusion
The escape of a gas through a tiny opening.
Effusion
In what phase of matter do the particles move independently with almost no attractive forces?
Gas
In general, the attraction liquid particles have for each other is called……
Cohesion
What is the normal boiling point of water?
100° C
Which of the following is standard pressure?
1 atm
101.3 kPa
760 mmHg
all of these
All of these
What type of a process is sublimation?
Endothermic
In which of the following locations would water boil above 100° C?
Mt. Everest (Tallest peak)
Denver, CO (The Mile High City)
Modesto, CA (Elevation 89 ft.)
Death Valley, CA (Lowest elevation in North America)
Death Valley, CA (Lowest elevation in North America)
Vapor pressure _____________ when temperature decreases.
decreases
What forces are involved in capillary action?
Both adhesion and cohesion
Which of the following would increase vapor pressure in a closed container?
heating the container
Which of the following has the greatest attraction between particles?
A substance that boils at 120°C
The temperature at which the vapor pressure and external pressure are equal is called?
boiling point
These intermolecular forces can be observed in water.
dipole-dipole interactions
hydrogen bonding
London dispersion forces
all of these
All of these
In which state of matter are the particles in fixed positions?
Solid
What type of process is freezing?
Exothermic
A solid with a low melting point is likely….
polar covalent
nonpolar covalent
ionic
metallic
nonpolar covalent
A carbonated beverage over ice contains _______ phase(s).
three
What type of attraction is the strongest?
ionic
Which of the following statements is false?
-Water molecules are affected by hydrogen bonding
-Water molecules always contain 1 oxygen and 2 hydrogens
-Water’s normal melting point is 0° C.
-Water always boils at 100°C
Water always boils at 100°C
Attraction between liquid particles and a solid surface are called
Adhesion
