ACS General Chemistry 2 Exam 38 Questions And Answers
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Terms in this set
38
Triple point
temperature and pressure where all there whales are in equilibrium with each other
Critical point
endpoint of a phase equilibrium curve; maximum pressure and temperature in which liquid and vapor can coexist
Supercritical fluid
At above critical pressure and temperature; has properties of both gas and liquid
Intermolecular forces (strongest to weakest)
Ion-Ion
Hydrogen bonding
Dipole-Dipole
Dipole-Induced Dipole
London Dispersion
Hydrogen bonding
Dipole-Dipole
Dipole-Induced Dipole
London Dispersion
R
.08206 when using liters
PV=nRT
Pressure- 760 torr = 1atm = 101325 pa
Temperature-always use kelvin
Temperature-always use kelvin
Higher vapor pressure means
Lower intermolecular forces, boiling point, heat of vaporization, and surface tension
Ptotal=
add partial pressures;
use mole fraction (moles of pure gas/total moles of gas) x vapor pressure of pure solvents to find partial pressures
use mole fraction (moles of pure gas/total moles of gas) x vapor pressure of pure solvents to find partial pressures
Osmotic pressure
π = i(nRT/V)
i is vant hoff factor
i is vant hoff factor
Ionic bonding
crystalline; high conductivity only when molten; high melting point