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单词 Massieu function
释义

Massieu function

英语百科

Massieu function

In thermodynamics, Massieu function, symbol  \Psi (Psi), is defined by the following relation:

where for every system with degree of freedom r one may choose r variables, e.g.  \big( X_1, \dots, X_i, Y_{i+1}, \dots Y_r \big) \, , to define a coordinate system, where X and Y are extensive and intensive variables, respectively, and where at least one extensive variable must be within this set in order to define the size of the system. The (r + 1)-th variable,  \Psi , is then called the Massieu function.

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