drafterman t1_iydc96g wrote on November 30, 2022 at 3:46 PM

Reply to comment by Aurigae54 in ELI5: Why does stuff dissolve in hot water more? by samuelma

>Liquids have a fixed volume regardless of temperature

https://www.researchgate.net/publication/344527033/figure/fig1/AS:944168385916929@1602118693482/Temperature-dependence-of-the-specific-volume-of-ice-and-water-plotted-based-on-Refs-15.ppm

Aurigae54 t1_iydouoo wrote on November 30, 2022 at 5:09 PM

I was thinking of pressure then, oops, regardless it doesn't change the fact that average kinetic energy of the water molecules is the main driver of solubility

drafterman t1_iydrkh3 wrote on November 30, 2022 at 5:26 PM

It is also the average kinetic energy of the water molecules that is a main driver of volume as well, so the concepts are not unrelated.