system
defined by boundary
surroundings
everything else
open system
matter and energy exchange
closed system
energy exchange
isolated system
neither matter or energy exchange
adiabatic
no heat exchange at all
isothermal
temperature can change and flow
thermal
temperature equilibrium
thermodynamic
stable amount of energy, not changing anymore
0th law of thermodynamics
2 systems that are separated in thermal equilibrium with a 3rd system are also in equilibrium with one another
1st law of thermodynamics
the internal energy U of an isolated system is constant
exothermic
negative heat value
endothermic
needs to gain heat to occur
isothermal
temp is constant
isobaric
pressure is constant
isochoric
volume is constant
heat
quantity of energy that flows spontaneously across the boundary between system and surroundings
expansion
work done by system
compression
work done on system
state function
A state function is a function that doesn’t depend on the path taken to reach that value.
path function
functions that depend on the path to reach that value between 2 states
isenthalpic
no change in enthalpy
