10.2 Gas Laws Including the Ideal Gas Law
|Boyle’s Law(constant n, T)||PV = constant or P1V1 = P2V2 or P ∝ 1/V|
|Charles’ Law(constant n, P)|
|Avogadro’s Law(constant T, P)|
|Combined Gas Law|
|Better Combined Gas Law|
|Ideal Gas Law|
Kinetic Molecular Theory (Ideal Gas Theory)
|Kinetic Molecular Theory (Ideal Gas Theory)|
|1||Gas molecules have negligible volume.|
|2||Gas molecules don’t have any attractive forces between themselves.|
|3||All collisions are elastic (no loss of kinetic energy).|
|4||A gas is composed of a large number of atoms/molecules in random motion.|
|5||KEavg ∝ T (KEavg = 3 / 2 RT)|
|1. Gases behave more ideally at low Pressure and high Temperature.|
|2. Gases with less Intermolecular Forces tend to behave more ideally.|
Ideal Gas Law
PV = nRT R =0.08206 L.atm/mol.K
What is the volume of 2 moles of argon gas behaving ideally at a temperature of 298K and a pressure of 2.0atm?
What is the volume of 80g of argon gas behaving ideally at a temperature of 25°C and a pressure of 1520torr?
What is the root mean square speed of O2 gas molecules at 273K?