How can Julia keep her fish cooler?

What did Julia originally place in the cooler to keep her fish cold? Why did the fish end up warmer instead? Julia originally placed packets containing chemicals in the cooler hoping they would keep the fish cold. However, she noticed that the packets in the cooler made the fish warmer. To keep her fish cooler, how could Julia modify the contents of the cooler?

Explanation:

To keep her cooler colder, Julia should use packets that absorb energy, undergoing an endothermic process. This will cause a decrease in temperature around the fish, keeping them more chilled. Her original packets likely released heat, undergoing an exothermic process.

To keep the fish in her cooler colder, Julia should place packets of chemicals in the cooler that absorb energy (Option A). This is based on the principles of thermodynamics and the behavior of substances during endothermic and exothermic processes.

An endothermic process absorbs heat from its surrounding environment, leading to a decrease in temperature. An example of this can be seen in instant cold packs which contain water and a salt like ammonium nitrate. When the substances are mixed, the solution absorbs heat, resulting in a cold sensation.

Conversely, an exothermic process releases heat into its surrounding environment, making things warmer. This seems to be what happened when Julia used packets that made the fish warmer, indicating they underwent an exothermic process.

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