Term
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Definition
whole system in reference to an outside source. (KE or PE) |
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Definition
Energy related to the molecular structure and activity. |
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Term
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Definition
Closed system that has constant velocity, elevation and center of gravity. (change in E = Change in U) |
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Term
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Definition
Internal energy associated with the phase of the system. |
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Term
Closed Systems energy interaction |
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Definition
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Term
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Definition
A process in which there is no heat transfer |
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Term
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Definition
energy transfer from energetic particles to less energetic particles. |
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Term
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Definition
energy transfer between a solid and a contact fluid in motion. |
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Term
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Definition
energy transfer due to emission of electromagnetic waves |
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Term
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Definition
The change in internal energy for a system is equal to the heat added to the system minus the work done by the system |
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Term
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Definition
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Term
Closed System (control mass) |
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Definition
fixed mass no mass transfer |
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Term
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Definition
Fixed mass No mass transfer No energy transfer |
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Term
Open system (control volume) |
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Definition
Allows mass and energy transfer |
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Term
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Definition
independent of mass (quantity) |
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Term
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Definition
properties that depend on size
mass, volume, momentum |
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Term
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Definition
the number of properties required to fix a state
simple compressible system is specified by two independent intensive properties. |
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Term
quasi static (quasi equilibrium) |
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Definition
remains close to equilibrium throughout process. |
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Term
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Definition
If A is thermally equal to B and B is thermally equal to C then A and C are thermally equal. |
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Term
Thermodynamic equilibrium |
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Definition
maintains thermal,mechanical, chemical and phase equilibrium |
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Term
Compressed liquid (sub-cooled liquid) |
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Definition
liquid is not about to vaporize |
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Term
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Definition
A liquid that is about to vaporize |
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Term
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Definition
A vapor that is about to condense |
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Term
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Definition
a vapor that is not about to condense |
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Term
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Definition
the temp. at which a pure substance changes phase at a given pressure |
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Term
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Definition
The pressure at which a pure substance changes phase at a given temperature |
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Term
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Definition
amount of heat absorbed or released during a phase change. |
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Term
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Definition
saturated liquid and saturated vapor states are identical. |
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Term
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Definition
the amount of energy needed to vaporize a unit mass of saturated liquid at a given temp. or pressure. |
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Term
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Definition
mass of vapor / total mass of mixture |
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