Thermodynamics
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April 08, 2016 |
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What is Thermodynamics?
Thermodynamic State Properties
•Thermodynamics: A set of of mathematical models and concepts
that allow us to describe the way changes in the system state
(temperature, pressure, and composition) affect equilibrium.
that allow us to describe the way changes in the system state
(temperature, pressure, and composition) affect equilibrium.
•
–Can be used to predict how rock-forming systems will respond to
changes in state
–
–Invert observed chemical compositions of minerals and melts
to infer the pressure and temperature conditions or origin
to infer the pressure and temperature conditions or origin
•Extensive:
These variables or properties depend on the amount of material present (e.g.
mass or volume).
•
•Intensive:
These variables or properties DO NOT depend on the amount of material (e.g.
density, pressure, and temperature).
Idealized Thermodynamic Processes
•Irreversible: Initial system state is unstable or metastable and
spontaneous change in the system yields a system with a lower-energy final
state.
•
•Reversible: Both initial and final states are stable
equilibrium states and the path between them is a continuous sequence of
equilibrium states. NOT ACTUALLY
REALIZED IN NATURE.
To read complete topic click here.............
Chemistry for class 11.....
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