Does Freezing Increase the Density of an Unknown Fluid?

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The discussion revolves around the effect of freezing on the density of an unknown fluid. When the fluid is frozen, a greater portion of it becomes submerged, suggesting a change in density. Participants reference Archimedes' Principle to analyze the relationship between volume and density. There is uncertainty about whether the fluid expands or contracts upon freezing, which directly impacts its density. Understanding these principles is crucial for determining how the fluid's density changes when frozen.
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Homework Statement


An unknown fluid is placed in a bottle and then placed in a beaker of water where it displaces x amount of water. The unknown fluid is then frozen into a block and a greater proportion of this substance is now submerged, what does this say about the change in density?


Homework Equations





The Attempt at a Solution


Am I right in thinking the density increases, there is no mention of what happens to the volume of the substance or the volume displaced?
 
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hi bobred! :smile:

well, you titled this Archimedes' Principle, how how about using the principle in your answer? :wink:
 
Yeah! bobred read the the statement of Archimede's principle carefully, you'll surely be able to solve then.
 
At equilibrium I have

\frac{V_0}{V}=\frac{\rho}{\rho_0}

what is confusing me is what happens to the unknown substance when it is frozen, does it expand or contract and therefore change the density \rho
 

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