What will happen to the temperature of soup when spoon is placed into bowl?

Here's what will happen to the temperature of the soup when a spoon is placed into the bowl:

* The spoon will cool down. The spoon is initially at room temperature, which is likely cooler than the hot soup.

* The soup will cool down slightly. The spoon will absorb some heat from the soup, causing the soup's temperature to decrease very slightly.

Why the change is small:

* Specific Heat: Soup and metal spoons have different specific heats. Specific heat is the amount of energy required to raise the temperature of a substance by a certain amount. Metals generally have a lower specific heat than liquids, meaning they heat up and cool down faster.

* Mass: A spoon is much smaller and has significantly less mass than the soup. Even if it absorbs a lot of heat relative to its size, it won't change the overall temperature of the soup by much.

In summary: While there will be a tiny temperature decrease in the soup, it's unlikely you'd notice it unless you were meticulously measuring the temperature.