Question

• Mixing ammonium nitrate with water
produces an endothermic reaction, i.e.
heat is absorbed. This is made use of in
chemical cold packs which athletes use
to reduce swelling after an injury.
(a) Suggest why the reaction is
endothermic.
(b) How would you know that the
reaction is endothermic?​

Answer 1

Answer:

a)...An endothermic reaction is a chemical reaction in which more energy is needed to break bonds in the reactants than is released when new bonds form in the products. A constant input of energy, often in the form of heat, is needed to keep an endothermic reaction going.

b). An endothermic reaction soaks up heat. An exothermic reaction releases heat. ... So if the sum of the enthalpies of the reactants is greater than the products, the reaction will be exothermic. If the products side has a larger enthalpy, the reaction is endothermic.

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Answer 2

Answer:

Adding ammonium nitrate to water turns the mixture cold and is a good example of an endothermic chemical reaction.