This is a draft cheat sheet. It is a work in progress and is not finished yet.
Properties
Intensive |
Extensive |
- Don't depend on size of system |
- Depend on size of system |
- Temperature |
- Mass |
- Pressure |
- Entropy |
- Chemical Potential |
- Volume |
Laws
First: The internal energy of a system is the sum of the work done on the system and the heat transferred
-> Total energy of universe cannot change
-> U = Q + W + W'
-> Enthalpy: H = U + PV
**Se |
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Systems
Isolated: No transfer of heat or matter
- will never change thermodynamic state once it reaches equilibrium
- Entropy can never decrease, only remain constant or increase
- Internal Energy is always constant
- No work done on or by system
Open: Can exchange both energy and matter with surroundings
Closed: Can transfer work and energy
- Thermodynamic state can change after equilibrium is reached |
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Processes
Reversible: No entropy produced
- No permanent changes in the universe
Irreversible: Results in dissipations, entropy production, and permanent changes
Adiabatic: No heat transfer
Isobaric: Constant Pressure -> dP = 0
Isochoric: Constant volume -> dV = 0
Isothermal: Constant temperature -> dT = 0
Cyclical: Returns system to initial state -> Delta U = 0 |
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