Ideal Gases and Kinetic Theory Flashcards
What is the equation for Pressure?
Force / Area
What are the three ways to change the pressure?
Change number of particles
Change kinetic energy of particles
Change volume of container
Isochoric
Constant Volume
Isobaric
Constant Pressure
Isothermal
Constant Temperature
Adiabatic
No heat transfer
Closed System
Constant Mass
What is Boyle’s Law
For a closed system and a constant temperature the Pressure and Volume are inversely proportional
PV = Const
What is Charles’s Law
For a closed system with constant pressure the Volume is proportional to the absolute Temperature
V/T = Const
What is the pressure Law?
For a closed system at a constant volume the Pressure is directly proportional to its absolute temperature
P/T = Const
Avogadro’s Law
Volume is directly proportional to number of molecules present for a fixed pressure and temperature
V/N = Const
What is Avogadro’s Constant
Na = 6.02x10^23
What is the equation for number of particles?
No of Mols (n) x Avogadros Constant
N = n x Na
What is Boltzmann’s Constant
K = 1.38x10^-23
What are the Ideal Gas Law equations?
PV = NKT
PV=nRT
Where n is the number of mols, R is the molar gas constant and N is the number of Particles
R = 8.31
How to calculate work done by a gas?
W = p x change in V
Area under the PV graph
Equation to calculate mass with ideal gas law?
Mr x PV/RT
Equation to calculate density with ideal gas law?
Mr x P/RT
What are the assumptions of an ideal gas?
Collisions are instantaneous
Lack of Attraction
Point Masses
Elastic Collision
Random Motion
What equation connects the ideal gas equation and kinetic theory?
PV = 1/3 Nm(Crms)^2
What is the equation for the kinetic energy of ideal gas molecules?
1/2m(Crms)^2
3/2nRT/N
