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Intensive
In thermodynamics, an intensive quantity or parameter, or intensity, is a partial derivative of an extensive function with respect to an extensive state variable. [1] Intensities are defined at one point of the space, and of degree zero with respect to amount of substance. Temperature and pressure are examples of intensive variables.
When the extensive function is internal energy, the corresponding intensive quantities are called "tensions". [1] A tension takes the same value on both sides of a boundary separating two systems at equilibrium, a character not shared by any other intensive quantity.
References
1. Perrot, Pierre. (1998). A to Z of Thermodynamics, Oxford: Oxford University Press.
When the extensive function is internal energy, the corresponding intensive quantities are called "tensions". [1] A tension takes the same value on both sides of a boundary separating two systems at equilibrium, a character not shared by any other intensive quantity.
References
1. Perrot, Pierre. (1998). A to Z of Thermodynamics, Oxford: Oxford University Press.
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