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A device for measuring the cubic expansivities of liquids. It consists of a bulb of known volume joined to a graduated capillary tube, which is closed at the top to prevent evaporation. A known mass of liquid is introduced into the device, which is submerged in a bath maintained at different temperatures t1 and t2. The two volumes corresponding to these temperatures, V1 and V2, are read off the calibrated stem. The value of the cubic expansivity (γ) is then given by γ = (V2V1)/V1(t2t1).

γ = (V2V1)/V1(t2t1).

Subjects: Chemistry — Physics.

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