Compute the change in volume and work done when one kilogram of the
The specific volume, isothermal compressibility, and volume expansivity of several liquids at 20°C and 1 bar25, where ? and ? may be assumed constant.
What will be an ideal response?
Volumetric Properties of Liquids at 20°C
First ethanol will be chosen as the substance to be used. In the problem the pressure is held constant, then the volume expansively equation is used to determine the change in volume.
Solving for dv and integrating gives:
Solving for 
gives:
Plugging in the specific volume and volume expansivity leads 
= 1.283 L for 1 kilogram of ethanol.
To determine the work we know that:
WW = ?P?V = ?1 bar ? (1.283 L ? 1.265 L) = -0.018 bar L = -1.8 joules
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