The process described is endothermic. In an endothermic reaction, the system absorbs heat energy from its surroundings, leading to a decrease in the temperature of those surroundings. In this case, the ice pack is absorbing heat from the environment as it undergoes a chemical reaction, resulting in a drop in ambient temperature. This absorption of heat confirms that the reaction is endothermic, as it requires energy input from the surrounding environment rather than releasing energy.
An ice pack is cracked, starting a reaction. The ice pack decreases in temperature as the reaction absorbs heat energy from the environment. The temperature of the surroundings decreases as heat is absorbed by the ice pack. Is this process exothermic or endothermic?
Explain your reasoning in 3-5 sentences.
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