chem chapter 10-11 Flashcards
what are the 6 phase transtions
liquid to gas
solid to liquid
gas to liquid
liquid to gas
solid to gas
gas to solid
condensation?
gas to liquid
melting?
solid to a liquid
condensation?
gas to a liquid
vaporization ?
liquid to gas
sublimation?
solid to gas
deposition?
gas to solid
the stronger the imf”s?
higher boiling point
higher melting point
need for more “e” to break imf
lower vapor “p” which leads to more forces holding in the liquid phase
higher viscosity
higher surface tension
how to determine as h - bond Donner and acceptor?
- for h bond donor the polarized bond is going to be the donors. having a s- and s+
- for h bond acceptor they usually have lone pairs having a s- charge
what is viscosity? give example of high and low viscosity
the measure of how a liquid flows
high: honey, syrup, motor oil, olive oil
low: gasoline, water etc..
what is surface tension?
the hardness of a liquids surface
adhesive forces vs cohesive forces
a: between diff molecules
b: between identical molecules
what is capillary action? and how can it be computed?
a: when liq molecs r attracted to porous material ex: wine climbing up a paper towel
b: h=2TCOS(0)/rpg
what is the purpose of a phase diagram?
they combine plots of “p” vs temp for 4 diff types of phase transitions
they show / indicate physical state under specific conditions and show “P”. regardless of phase transition temp
what is dynamic equilibrium ?
reciprocal processes are occurring at equal rates
