As the hot soup cools, so it contracts and, as there is evaporation of any water content continuing, the soup will reduce slightly in volume.
Consomme soup should not be eaten with a dessert spoon, but with a boullion spoon, which is the round bowled spoon we now commonly called a soup spoon. Soup was eaten, and still is in silver service, with soup spoon which is very similar to a table spoon and about the size of what we now call a table spoon.
When setting the table for a meal in which soup is the first course, the soup bowls are placed on top of the dinner plate. (Or on top of the salad plate, which is already on top of the dinner plate if salad is to follow the soup.)
It is a tureen for soup, and can be used to serve vegetable at the table.
cold
Slurp your soup!
Cooked soup should be kept in the refrigerator for no longer than 3 days.
It really depends on the size of your soup.
Yes, it is a mixture of water and whatever has been reduced for the flavour.
the size of a soup bowl
Dissolving table salt in a bowl of soup is a physical change because it doesn't alter the chemical composition of the salt or soup. The salt molecules simply spread out within the soup due to the intermolecular forces between the salt and water molecules.
Exactly what it should be
you could have a tin of large chicken soup or small or meduim