Question

The liquid is being heated.

Marion measured the volume of the liquid at the start and the end of the Marion experiment.
Do you think there was less, more or the same volume of liquid at the end as there was at the beginning?
Give a reason for your answer.

Answer 1

there should be less liquid at the end of the experiment since heating liquid is an endothermic process, and endothermic processes typically break the bonds between liquids. The applied heat would soon break the bonds that hold the molecules of the liquid together, and evaporation would occur once the temperature is hot enough. Thus, the evaporated water would decrease the volume of the liquid.