Overview of General Work Forms

Let us recap what has been learned from the assortment of work forms considered in Sections 3.3.1-3.3.6. In each case, the differential work form dwL of type i can be expressed in terms of an intensive property Rt and the complementary extensive property XL in the form 

The total work dwtotdL is generally a summation of contributing work types, 

TABLE 3.2 Summary of Work Types, with Associated / , (Intensive) and Xt (Extensive) Properties and Differential Work Element dwt 

Gravitational Gravitational field strength g Mass displacement mh dWgrav = g d(mh) 

Pres sure - volume Negative pressure - P Volume V dwPV= —PdV 

Pressure volume Negative pressure — P Volume V dwpv = —PdV 

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