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picture1_Lecture Ppt 78758 | Lecture36


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File: Lecture Ppt 78758 | Lecture36
4 30 laurence zac eric 5 2 kristen audrey griffin 09 05 2022 phy 341 641 spring 2012 lecture 36 2 fundamental principles of thermodynamics and statistical mechanics this course ...

icon picture PPTX Filetype Power Point PPTX | Posted on 06 Sep 2022 | 3 years ago
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     4/30– Laurence, Zac, Eric
     5/2  -- Kristen, Audrey, Griffin
     09/05/2022             PHY 341/641 Spring 2012 -- Lecture 36    2
           Fundamental principles of thermodynamics and 
                          statistical mechanics
       •  This course focused on “thermostatics” and statistical 
          mechanics of systems in equilibrium
       •  Thermal equilibrium fixed temperature
       •  First law of thermodynamics
            E  E E QW
              2      1
         For heat added TO the system:  Q 0
         For heat withdrawn FROM the system:  Q 0
         For work done TO the system (contraction):  W 0
         For work done BY the system (expansion):  W 0
     09/05/2022              PHY 341/641 Spring 2012 -- Lecture 36     3
    Thermodynamic process  -- WORK
                  various sign conventions  !!!#$#!!!
     Sign convention in your text  -- work ON the system;  
     system expands     W 0:
     dW FdxPAdx PdV
                V
     W  2P(T,V)dV
       12     
                V
                 1
     09/05/2022           PHY 341/641 Spring 2012 -- Lecture 36   4
            First law of thermodynamics
       E  E EQW
          2       1
         Q    heat added TO the system
        W   work done ON the system
                                            Q
                    W        System 
                             of study
                      Controlling medium
     09/05/2022            PHY 341/641 Spring 2012 -- Lecture 36    5
            Fundamental principles of thermodynamics and 
                   statistical mechanics  -- continued
       •  From the analysis of the Carnot cycle, a new state variable 
          – S = entropy was analyzed.   For a “reversible” process this 
          is defined by:           dQ
                            dS 
                                    T
      •  In terms of S, the differential form of the first law of 
         thermodynamics becomes
          dEdQdW TdS PdV
     09/05/2022              PHY 341/641 Spring 2012 -- Lecture 36       6
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...Laurence zac eric kristen audrey griffin phy spring lecture fundamental principles of thermodynamics and statistical mechanics this course focused on thermostatics systems in equilibrium thermal fixed temperature first law e qw for heat added to the system q withdrawn from work done contraction w by expansion thermodynamic process various sign conventions convention your text expands dw fdxpadx pdv v p t dv eqw study controlling medium continued analysis carnot cycle a new state variable s entropy was analyzed reversible is defined dq ds terms differential form becomes dedqdw tds...

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