Definitions Flashcards
Define adiabatic
No heat transfer
Define isothermal
Constant temperature
Define isentropic
Constant entropy
Define isobar
Constant pressure
Define isenthalpic
Constant enthalpy
Define extensive property
Depends on amount of material in system e.g. volume
Define intensive property
Doesn’t depend on amount of material in system e.g. pressure, temperature
Define system
Part of process we are interested in
Define surroundings
Everything else not included in system
Define system boundary
Divides system from the surroundings
Define closed system
No material transfer across boundary
Define open system
Material transfer
Define flow system
Material transfer in and out
Define steady flow system
Material transfer in and out that system remains constant
Define an isolated close system
No energy transfer across boundary
Define zeroth law
Two systems at thermal equilibrium with a third system , then they are in thermal equilibrium with each other
Define a reversible process
System and surroundings returned to original states with no extra input of heat/work
Define heat capacity
Amount of heat required to raise temperature by one degree
