Gases Flashcards
1
Q
ideal gases
A
- molecules have no intermolecular forces adn occupy no volume
- at low pressure and high temperature gases behave nearly ideal
2
Q
Boyle’s law
A
PV=PV
3
Q
Charles’ law
A
V/T = V/T
4
Q
ideal gas law
A
PV = nRT
R = .0821 L x atm/(mol x K)
5
Q
STP
A
273 K and 1 atm
K = C + 273
6
Q
law of diffusion and effusion
A
r1/r2 = (MM2/MM1)^(1/2)
7
Q
assumptions of kinetic molecular theory of gases
A
- particles have negligible volume
- no intermolecular attractions or repulsions
- molecule are in continuous random motion
- collisions are elastic (no overall gain or loss of energy)
- average kinetic energy of particles is proportional to the absolute temperature.