Incompressible substance: A substance whose specific volume (or density) is constant. Solids and liquids are incompressible substances.

Figure 4-33 The specific volumes of imcompressible substances remain constant during a process.

Figure 4-34 The c_v and c_p values of incompressible substances are identical and are denoted by c.

Internal Energy Changes

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Enthalpy Changes

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The enthalpy of a compressed liquid

Usually amore accurate relation than

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Ex. 4-11.png

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Cooling of an Iron Block by Water

Heating of Aluminum Rods in a Furnace

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