EXAM

means without water
anhydrous
crystals lose water of hydration to the atmosphere undergo
efflorcentces
substances that attract water from the air, AND completly dissolve (a puddle forms)
deliquesecnt
________ crystals have molecules in their stucture eventhough the crystals appear to be dry
hydrated
___________ means random arrangment
amorphous
crystals that attract water look wet, stick together are said to be…
hygroscopic
an ______ occurs when 2 opposing changes occur @ the same time
dynamic equilibrum
when the gaseous phase can hold no more vapor it is said to be ______
saturated
when substances (that are normally liquids or solids @ room temp) form the gasous state this gaseous state
vapor
TRUE/FALSE the melt point and freez are @ same temp
true
he temp @ which the vapor pressure of a liquid = the atmospheric
boiling point
pressure of liquid = 101.325
normal boiling point
volatile liquid have _________ attraction between their molecules
weak
sub with low melting points have ______ attraction between their molecules
weak
If stress is applied to a system @ equilibrium, the system will tend to readjust so that the stress is reduced
LeChatelier
the temp where the vapor pressure of the solid =the vapor pressure of the liquid is the ________ point
melting
sub with strong forces between molecules have _______ vapor pressure
low
as the atmospheric pressure increases, the boiling point )______________
increases
name a common substance that undergoes sublimation
dry ice
particles independent of each other
gas
mean free path
particle travels between collision
perfectly elastic
collison between particles in which NO energy is lost
what gas is almost “ideal”
helium
@ constant temp as the vol decreases, the pressure _________
increases
@ a constant pressuree as Kelvin temp increases, the vol _____________
increases
gases fail to be ideal at
high pressure and low temp
the temp @ which the vapor pressure of a liquid = the atmospheric
101.325 kPa
the value of standard temp
273 K
an ______ gas is a gas that obeys all gas laws perfectly under all conditions
ideal
________ law states the amoust and vol of a gas remains constant, the pressure varies ______ with the _______ temp.
Guy-Lussac’s
directly
Kelvin
Charles law, Guy and boyle make
combined gas laws
____law states if the amount and temp of gas remains constant, the a volume varies ________ as the _______
Boyles
inversly
pressure
if pressure decreases, and volume decreases kelvin temp?
decreases
if pressure doubles, Kelvin temp triples volume
increse
two ways to speed up rate solid dissolves in a liquid
crush, heat
non polar solvent
painthinner
gas solute in liquid solvent
sodapop
solute
being dissolved
an alloy of mercury and some other metal is called
amalgam
__________ law states explains the effect pressure has on the solubility of a gas in a liquid
Henry’s
_________ gas will dissolve in a liquid if the pressure above the liquid is decreased
less
_______ gas will dissolve in warm h2o than cold h20
less
to dissolve more sugar in water increase _______
temp.
tree sap is more likely soluble in water or rubbing alcohol?
rubbing alcohol
as the temp ^ a solid becomes ______ soluble in liquid
more