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Examples of endothermic reactions include photosynthesis, dissolving salt in water, and chemical cold packs. An endothermic reaction is a chemical reaction that absorbs thermal energy from its surroundings. Because heat is absorbed, endothermic reactions feel cold.
Here's a list of examples of endothermic reactions. You can use these when asked to cite an example or to get ideas to set up a demonstration of an endothermic reaction or process. An endothermic reaction is any chemical reaction that absorbs heat from its environment.
Endothermic Reaction Examples. When ammonium chloride (NH 4 Cl) is dissolved in water, an endothermic reaction takes place. The salt dissociates into ammonium (NH 4+) and chloride (Cl –) ions. The chemical equation can be written as follows: NH4Cl (s) + H2O (l) NH4Cl (aq) – Heat.
An endothermic reaction is a type of chemical reaction during which a system absorbs energy from its surroundings. One can also say that in the case of an endothermic process, the change in enthalpy is always positive. The opposite of an endothermic reaction is an exothermic reaction.
Find out about the endothermic reaction. Learn the energy diagram and check out a few examples. Compare and contrast endothermic and exothermic reactions.
Endothermic Reaction: When \(1 \: \text{mol}\) of calcium carbonate decomposes into \(1 \: \text{mol}\) of calcium oxide and \(1 \: \text{mol}\) of carbon dioxide, \(177.8 \: \text{kJ}\) of heat is absorbed.
An example of an easy endothermic reaction is dissolving potassium chloride (sold as a salt substitute) in your hand with water. An example of a quick exothermic reaction is dissolving powdered laundry detergent in your hand with a bit of water.
In endothermic and exothermic reactions, energy can be thought of as either a reactant of the reaction or a product. In an exothermic reaction, heat is released (considered a product) and the energy of the system decreases (Δ H is negative).
Some examples of endothermic reactions are: electrolysis. the reaction between ethanoic acid and sodium carbonate. thermal decomposition. of calcium carbonate in a blast furnace. The slideshow...
Some examples include: Melting ice into water. Evaporating liquid water. Depressurizing a can. Making salt (NaCl) from its elements. Photosynthesis.