Answer:
If you sealed the lid of a water bottle and stirred 100 mL of water for two minutes, you would find that the water got hotter.
Explanation:
If you cap a bottle that contains 100 mL of water and shake the bottle, you will cause the water molecules to move. This will cause them to bump into each other, releasing energy that will increase the temperature of the system and heat water. This is because the potential energy stored in the water molecules was transformed into kinetic energy with the movement of these molecules, which, again, was transformed into thermal energy.