Lexture 1 notes
Closed
system
A system which only allows the transfer between itself and the enviroment.
Property
Any mesurable characteristic of a system that helps define its state
State postulate
The state of a single compressivle system is compleately specified by 2 independent intensive properties
Pressure
Force per unit area
Gauge Pressure
Pressure of a system relative to atmospheric pressure
Absolute pressure
Pressure of a system relative to a perfect vaccum
2 point temprature scale
System for measuring temprature where the scale is defined by only 2 fixed points.
Thermodynamic temprature scale
Absolute temprature scale based on the fundamental laws of thermodynamics
Process
Change from 1 equlibrium state to another
Path
Sequence of states a system goes through when changing from inital to final state.
Equilibrium
The state of a system where it experiences no net change over time.
Quasi Equlibrium
Idealized thermodynamic proscess which occurs indefinetly slowly ensuring a system remains infitesimally close to equlibrium at all times.
Work
Energy transferred between a system and its surroundings due to an enacted force over a distance.
Stationary System
A system where its potential and kinetic energy remain cobstant overtime.
Internal Energy
Total macroscopic energy contained within a system.