Question

Would the density of a hot liquid be greater or less than a cold liquid?

Answer 1

Would not the `"density"` of the former solution BE GREATER than the latter solution?

Explanation:

`rho,` `"density"` `=` `"Mass of substance"/"Volume of solution"` and for chemists typically `rho` has units `g*mL^-1` or `g*cm^-3`.

In general (for condensed phases) `rho` DECREASES (marginally) with increasing temperature in that `"volume"` marginally increases while `"mass"` is a constant. In any case the colder solvent contains more solute particles by the problem's specification, and should thus be intrinsically denser.

And thus `rho_"cold water solution">rho_"hot water solution"`.