states of matter

melting/fusion

solid to liquid(endo)

evaporation

liquid to gas(endo)

sublimation

solid to gas(endo)

freezing

liquid to solid(exo)

condensation

gas to liquid(exo)

deposition

gas to solid (exo)

barometer

measure’s atmospheric pressure

melting point

temp and pressure where a solid and a liquid are at equilibrium

boiling point

temp and pressure where a liquid and a gas

triple point

temp and pressure where all three phases are in equilibrium

changing IMFS

LDF<DD<HB

@ 1 atm of pressure, water and steam exist in equilibrium at what temp?

373 K

@ 1 atm of pressure, water and ice exist in equilibrium at what temp?

273 K

boiling point of water

212 F ; 100 C ; 373 K

human body temp

98.6 F ; 37 C ; 310 K

room temp

68 F ; 20 C ; 293 K

freezing point of water

32 F ; 0 C, 273 K

lowest possible temp

-273 C; 0 K

(temp eq’s)

delta T = T2 - T1 ; TF = 1.8 Tc + 32

delta TF = 1.8 • delta Tc ; Tk = Tc + 273

standard temp and pressure of 0.5 atm =7

0 C & 380 mm Hg

standard temp and pressure

0 C & 760 mm Hg

phase change that decreases in entropy

gas to liquid

process accompanied by a decrease in entropy

condensing water vapor

phase changes in order of increasing entropy

solid—>liquid—>gas

diatomic gases at room temp in order of increasing mass

H2, N2, O2, F2, Cl2

monatomic gases at room temp in order of increasing mass

He, Ne, Ar, Kr, Xe, Rn

the two elements that are liquid at room temp

Hg, Br2