Cooling soup...?

Question

If you want to cool a hot liquid, like soup for example, would putting an ice cube work? Since there is no such thing is "cold" and heat travels from something hot to less hot, then the ice cube would just absorb heat, but it is still in the soup. How does this work?

Answer 1

The process of melting takes in energy. If you set the soup in a bowl of ice, it would take the heat from the soup to melt the ice. If the ice is in the soup, yes it will absorb the heat of the soup and melt into it.

If the ice were -40 degrees C, first it would warm up to 0 degrees C, at .5 calories per gram of ice.
Then it would melt, taking in 80 calories per gram of ice. Then the cold water would warm up at the rate of 1 calorie per gram of water.

Answer 2

If a liquid is heated or hot then the molecular structure is expanded and under a microscope you can see the molecules being agitated by the heat,when tossing in a solidify ed extremely cold thing like an ice cube the heat is then transfer ed from the hot soup or molecules to the ice cube ..hot to cold..this will keep occurring as long as the ice cube remains in tact as it dissolves it takes on the heat from the soup and is said to be absorbed by the soup..this process is called absorption
Absorption, in chemistry, is a physical or chemical phenomenon or a process in which atoms, molecules, or ions enter some bulk phase - gas, liquid or solid material. This is a different process from adsorption, since the molecules are taken up by the volume, not by surface. A more general term is sorption which covers adsorption, absorption, and ion exchange.

If absorption is a physical process not accompanied by any other physical or chemical process, it usually follows the Nernst partition law:

"the ratio of concentrations of some solute species in two bulk phases in contact is constant for a given solute and bulk phases";

Answer 3

Well the ice cube does absorb the heat because it is cold in some sense. The absorption of heat causes it to melt until it reaches equilibrium.

Answer 4

The process of melting draws heat from the surroundings. ~