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