Question

A college student heats a bowl of soup to a certain temperature. Before eating any, the student decides to add more soup. Once more soup is added, the student heats the soup to the same temperature as before.

Which of the following statements is true about the soup's thermal energy now that more soup has been added?

The soup has lost its thermal energy to its surroundings.
The soup has less thermal energy than it did before.
The soup has the same amount of thermal energy it did before.
The soup now has more thermal energy than it did before.

Answer 1

The correct answer is option id B. The soup has less thermal energy than it did before.

After heating the soup to a certain temperature when the college student added more soup that brought down the temperature of the recently heated soup. The hot soup loses it heats to the newly added mass/quantity of soup.

Answer 2

The answer is: The soup now has more thermal energy than it did before