davidaagurto
contestada

Which of these describes an endothermic process?

When lithium is placed in water, the temperature of the container increases.

The combustion of kerosene releases heat.

When barium hydroxide is mixed with ammonium chloride, ice crystals form on the outside of the container.

The reaction of trinitrotoluene with oxygen releases heat and light.

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AJGreen
The third one down: "When barium hydroxide is mixed with ammonium chloride, ice crystals form on the outside of the container."

This is because an endothermic reaction [process] takes in more energy than it releases. Therefore because a decrease in energy leads to a decrease in temperature, the ice crystals forming show that it must be a endothermic reaction [process].

Hope this helps! :)
AJ
Histrionicus

This describes an endothermic process - When barium hydroxide is mixed with ammonium chloride, ice crystals form on the outside of the container.

Endothermic reactions are reactions that require external energy, usually in the form of heat, for the reaction to proceed and absorb more energy than it releases.

  • exothermic reactions release heat, causing the temperature of the immediate surroundings to rise
  • In the endothermic process, more energy is absorbed to break the bonds in the reactants than is released when new bonds are formed in the products.
  • In given options except for option C, all three reactions release energy or increase the temperature with products.

Thus, This describes an endothermic process - When barium hydroxide is mixed with ammonium chloride, ice crystals form on the outside of the container.

Learn more:

https://brainly.com/question/1160007

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