Assigment3 Flashcards
Pascal Units (Pa)
N / m^2
Force / area
Ideal Gas (Definition)
Is a theroetical gas that perfectly follows the ideal gas law (PV = nRT)
where:
- Gas Particles have no volume.
-Thera are no intermolecular forces between the particles.
-collision between particles are perfectly elasttic.
Ideal Gas Law Formula
when temperature is constant ; P1V1 = P2V2
Otherwise
P1V1 / T1 = P2V2 / T2
atm to pa
1 atm - 101.324 kPa
Pressure Manometer
P gas = Patm - h or + h
atm to mm HG
1 atm - 760 mm Hg
Calculate Partial Pressure
Pa = Pa * Va / Vtotal
Calculate Mole fraction
X = PH2 / P total
The fact that the temperature and volume are the same for all gasses after micting ensures that the relationship between partial pressure and moles is consistent across all gasses.
Another formula ofr density on an Ideal gas condition
density = g / V
density = M * P / (R *T)
Vrms theory
- R = 8.314 J / mol K and M is in kg/mol
-Statical measure of the speed of particles in a gas.
-Gives us an idea of how fast the molecules in a ga are moving at a given temperature.
The key assumptions.
Molecular Motion, no intermolecular forces, elastic collision, negligible volume, average kinetic energy