Liquids and Solids Flashcards
least common state of matter
liquid
density
degree of compactness
liquid
substance with definite volume and indefinite shape
source of kinetic energy of liquids
flowing
vibration
density of liquids
higher than gas form
lower than solid form (except for water)
compressibility of liquids
incompressible
viscosity
resistance to flow

surface tension
closeness of particles at edge of liquid to prevent gas from entering
caused by attraction of particles on surface by bulk of liquid

capillary action
ability of a liquid to flow in narrow spaces without the assistance of (or even in opposition to) external forces like gravity
causes liquid to slowly move up sides of container
causes formation of miniscus

miscibility
ability of 2 or more liquids that mix to form solution
solid
substance with definite volume and definite shape
source of kinetic energy of solids
vibration
2 types of solids
amorphous solid
crystalline solid
amorphous solid
solid without a regular and natural shape
creation of amorphous solids
made by cooling certain molten materials in a way that they don’t crystallize
crystalline solid
solid with a crystal structure
crystal structure
total 3-dimensional arrangement of particles of a crystal
repeating geometric pattern
6 types of crystal structures
cubic crystal structure
tetragonal crystal structure
orthorhombic crystal structure
monoclinic crystal structure
triclinic crystal structure
hexagonal crystal structure
cubic crystal structure
crystal structure wherein the unit cell is in the shape of a cube
3 axes

tetragonal crystal structure
crystal structure wherein the unit cell is shaped as a rectangular prism with a square base
3 axes

orthorhombic crystal structure
crystal structure wherein the unit cell is a rectangular prism with a rectangular base
3 axes

monoclinic crystal structure
crystal structure wherein the unit cell is a rectangular prism with a parallelogram base
3 axes

triclinic crystal structure
crystal structure wherein the unit cell is made up of 3 axes of different lengths and angles
3 axes

hexagonal crystal structure
crystal structure wherein the unit cell is a hexagonal prism
4 axes

crystal structure of water
hexagonal
lattice
coordinate system used to represent arrangement of particles
unit cell
smallest portion of crystal lattice that shows 3-dimensional pattern of entire lattice
melting point of crystalline solids
definite
melting point of amorphous solids
indefinite
supercooled liquid
substance that remains certain liquid properties (even at temperature where it appears to be solid)
density of solids
higher than gas form and liquid form (except for water)
compressibility of solids
incompressible
may seem compressible (like wood or cork) but not actually compressible (caused by pores filled with air)
diffusion of solids
possible (seems impossible)
rate of diffusion of solids
millions of times slower than that of liquids or gases
4 types of crystals
ionic crystals
covalent network crystals
metallic crystals
covalent molecular crystals
ionic crystal
crystal consisting of positive and negative particles in a regular pattern
hardness of ionic crystals
hard
brittleness of ionic crytstals
brittle
melting point of ionic crystals
high
boiling point of ionic crystals
high
insulation abilities of ionic crystals
good insulators
solubility in water of ionic crystals
soluble in water
electrical conductivity of ionic crystals
conductive of electricity when dissolved in water
covalent network crystal
crystal wherein each atom is covalently bonded to its nearest neighboring atoms
hardness of covalent network crystals
very hard
brittleness of covalent network crystals
very brittle
melting point of covalent network crystals
high
boiling point of covalent network crystals
high
electrical conductivity of covalent network crystals
nonconductive of electricity
semiconductive of electricity
metallic crystal
crystal consisting of metal atoms surrounded by delocalized electrons
hardness of metallic crystals
varied
melting point of metallic crystals
varied
boiling point of metallic crystals
varied
tensile strength of metallic crystals
varied
electrical conductivity of metallic crystals
very conductive of electricity
solubility in water of metallic crystals
insoluble in water
covalent molecular crystal
crystal consisting of covalently bonded molecules held together by intermolecular forces
2 types of covalent molecular crystals
nonpolar covalent molecular crystals
polar covalent molecular crystals
force within nonpolar covalent molecular crystals
London dispersion forces
forces within polar covalent molecular crystals
dipole-dipole forces
hydrogen bonding
hardness of covalent molecular crystals
soft
melting point of covalent molecular crystals
low
boiling point of covalent molecular crystal
low
insulation abilities of covalent molecular crystals
good insulators
melting
change in state from solid to liquid
gain of energy
vaporization
change in state from liquid to gas
gain of energy
sublimation
change in state from solid to gas
gain of energy
freezing
change in state from liquid to solid
loss of energy
condensation
change in state from gas to liquid
loss of energy
deposition
change in state from gas to solid
loss of energy
evaporation
change in state from liquid to gas that occurs below the boiling point
form of vaporization
gain of energy
process of evaporation
process by which particles escape from surface of liquid and enter gas state
heat of fusion
ΔHF
amount of heat that is added to melt or removed to freeze a substance
heat of vaporization
ΔHV
amount of heat that is added to vaporize or removed to condense a substance
equilibrium
dynamic condition in which 2 opposing changes occur at equal rates in system
closed system
system wherein matter cannot enter or leave (but energy can)
open system
system wherein both matter and energy can enter and leave
Le Châtlier’s Principle
states that system attains new equilibrium position that minimizes stress when system at equilibrium is disturbed by application of stress
volitile liquid
liquid that evaporates easily
vapor pressure
equilibrium vapor pressure
pressure exerted by vapor in equilibrium with its corresponding liquid at given temperature
phase
any part of system that has uniform composition and properties
phase diagram
graph of pressure and temperature that shows changes in state for substance

triple point
indicator of at which temperature and pressure conditions that a solid, liquid, or gas of substance can exist at equilibrium
critical point
indicator of critical temperature and critical pressure
critical temperature
tc
temperature above which substance cannot exist in the liquid state
critical temperature of water
- 99°C
- 99K
critical pressure
Pc
lowest pressure at which substance can exist as liquid at the critical temperature
critical pressure of water
217.75atm
temperature at which water is most dense
4°C
277K
specific heat formula
Q = mcΔt
heat of fusion formula
Q = nΔHF
heat of vaporization formula
Q = nΔHV