Does anyone know why the volume of an ethanol and water solution increase when heated?

Question

anonymous · Answer

when heated, the hydrogen bonds between water and ethanol molecules are getting weaker, causing greater distance between the molecules. this is translated to a larger volume of the solution.

anonymous · Answer

Oh okay, that makes sense. Thank you so much. So they are getting weaker because of the heat?

anonymous · Answer

yes, they get more energy by the heat and the molecules vibrate rapidly so they can't stay close to other molecules.

anonymous · Answer

Okay, so i can relate that to the particle theory.

anonymous · Answer

I am not quite sure... you can relate it to the thermodynamical theory for sure... I'm not sure it's related to repulsion of electron clouds.

anonymous · Answer

Okay, all good. Thank you so much for you'r help.