Ch 3 Flashcards
Collection of matter and space with carefully defined boundaries.
System
System with no mass or energy transfer across boundaries.
Isolated System
System with no mass transfer across boundaries but energy transfer may occur.
Closed System
System with energy and mass transfer across its boundaries.
Open System
Fluid in a system that carries and transfers energy.
Working Fluid
Precise thermodynamic condition of a fluid.
State
System is in equilibrium with regard to all possible changes in state.
Thermodynamic Equilibrium
Properties at any given point within the system are constant over time. Neither mass nor energy is occurring within the system.
Steady State
Succession of states that a system passes through.
Thermodynamic Process
Series of processes that results in the system returning to its original state.
Cyclic Process
Process that can be reversed, resulting in no change in the system or surroundings.
Reversible Process
Process that if reversed, would result in a change to the system or surroundings.
Irreversible Process
Process with no heat transfer across the system boundaries.
Adiabatic
Process in which entropy of system remains unchanged.
Isentropic Process
Process in which enthalpy is constant and adiabatic.
H1 = H2, work = 0, Q = 0
Throttling Process
