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Thermodynamic System

What are three types of thermodynamic systems?

  1. Isolated: No exchange of heat, matter or work with the environment.
  2. Closed: Exchange of heat and work, but no exchange of matter.
  3. Open: Exchange of heat, work and matter.




Table 37.1: Thermodynamic systems
  Exchanges with the environment: Does not exchange with the environment: Example
       
Isolated   Heat  
    Matter A very, very good thermos
    Work  
       
Closed Heat Matter Greenhouse
  Work    
       
Open Heat    
  Matter   Ocean
  Work    


What are four thermodynamic processes?


The four processes are systems going through changes in which a certain property is fixed or controlled:

  1. Isobaric - pressure is constant
  2. Isothermal - temperature is constant
  3. Isochoric - volume is constant
  4. Adiabatic - heat does not enter or leave (i.e. similar to isothermal)



What are six state functions seen in thermodynamics?

  1. Temperature
  2. Pressure
  3. Volume
  4. Entropy
  5. Enthalpy
  6. Gibbs free energy


next up previous contents
Next: State functions Up: Thermodynamics Previous: Thermodynamics   Contents
Alfa Diallo 2006-08-04