thermal physics Flashcards
what is boyle’s law
pressure is inversely proportional to volume
what is charles law
volume is proportional to temperature
what’s the pressure law
pressure is proportional to temperature
what is avogadros law
number of molecules are proportional to volume
what is the ideal gas equation
pV=NkT
pV=nRT
what is k in the gas equation
boltzmann constant (1.38x10^-23)
how do you find the number of molecules from moles
N=n x Na
equation linking R, k and Na
R=k x Na
what are the assumptions of the kinetic theory of gases
-all gas particles are identified
-all collisions are elastic
-the particles motion is random
-there are no intermolecular forces between gas particles
-there is a statistically significant number of particles
-all particles obey newtons laws of motion
-total volume of gas is negligible compared to volume of container
-duration of collisions is negligible
what’s the average force of the wall on a particle
F=dp/dt = -mu^2/l
what is sensible heat
energy which causes a change in temperature
what is latent heat
energy which causes a change of state at the boiling/melting point
what is the equation for sensible heat
Q=mcdT
what is the equation for latent heat
Q=mL
what is the first law of thermodynamics
the change in internal energy of a system is equal to the total energy transfer due to work and heat
