C2: Gases Flashcards
Class 2
what is the ideal gas law?
- what is R?
PV = nRT
- 0.0821 L atm/K mol
what is graham’s law of effusion?
- what do a and b stand for?
rate a/ rate b = sqrt (Mb/Ma)
- a = gas 1
b = gas 2
what is dalton’s law of partial pressure?
PT = P1 + P2 + P3…
the kinetic molecular theory is a model for describing …
the behavior of gases
according to the kinetic molecular theory,
the molecules of a gas are so small compared to the spacing between them that…
the molecules themselves take up basically no volume
according to the kinetic molecular theory,
the molecules of gas are in constant motion, moving in random directions between collisions. the collisions of the molecules with the walls of the container define…
the pressure of the gas
according to the kinetic molecular theory,
the average kinetic energy of the molecules of a gas ….
are directly proportional to the absolute temperature
according to kinetic molecular theory,
the molecules of an ideal gas….
need to be small and experience no intermolecular forces
what is the SI unit for volume?
cm^3 and L
1cm^3 = ____ cc = ____ mL
1; 1
1m^3 = ____ L
1000
what is the SI unit for pressure?
pascal (Pa)
____ atm = 760 torr = ____ mm Hg
1; 760
what is effusion?
the escape of a gas molecule through a very tiny hole into an evacuated region
gases are at their most ideal at ____ pressure and ____ temperature
low; high
