Find an expression for the isothermal compressibility consistent with this equation.

The Tait equation for liquids is written for an isotherm as:



where V is molar or specific volume, V0 is the hypothetical molar or specific volume at zero pressure, and A and B are positive constants.


By definition, the isothermal compressibility is



So, to find the isothermal compressibility, we just need to take the derivative of V with respect to P. For the Tait equation, we have

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