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21 Cards in this Set

  • Front
  • Back
System
Whatever we want to study
Surroundings
Everything outside the system
Boundary
what distinguishes the surroundins
Closed system
has no transfer of mass
Isolated System
Closed system that does not interact with its surrondings
Property
a characteristic such as mass, volume, energy, pressure, and temperature
State
refers to the condition of the system as described by its properties.
Process
When any of the properties of a system undergo a change
Steady State
none of the properties change with time
Thermodynamic process
a sequence of processes that begins and ends at the same state.
Phase
matter that is homogeneous throughout in both chemical compositon and physical structure
Pure substance
uniform and invarible in chemical compostion
thermometric property
measurable property changes as its temperature changes
triple point of water
the state of equilibrium b/w stream, ice, and water
w>0
word done by the system
w<0
work done on the system
work is not a property
True
Power
the rate of energy transfered by work
quasiequilibrium process
one in which all states trough which the system passes may be considered equilibrium states.
convection
energy transfer trough gas or liquid
transient
state changes with time