General

Examples of Exothermic Reaction

When exothermic nuclei combine, they tend to fragment, which generates the absorption or release of energy and particles transmuted into light or heat. These reduction and oxidation processes give off high energy values, which is known as an exothermic reaction .

For the energy absorbed by a system to be quantifiable , it needs a thermodynamic parameter called enthalpy , better known in formulas by the letter “H” . If energy is released around a system, the enthalpy change would have a negative value. On the contrary, if the variation is positive, it reflects the absorption of heat from the surroundings.

Examples of Exothermic Reaction

  • The hot ice or sodium acetate, is created through a crystallization process mineral frozen solutions instead of cold release, releases heat.
  • The volcanic eruptions simulated , commonly in schools or projects originate from the combination of soda and vinegar, giving as result an exothermic reaction which releases large amounts of foam.
  • The combination of the steel shavings plus the vinegar , generate an oxidation reaction through a slow combustion process.
  • When you light a candle , you also generate an exothermic reaction, since the combustion coming from the paraffin and the wick of the candle, release quantities of heat and light.
  • The combination of butane gas with oxygen generates an exothermic reaction.
  • If you mix nitrous oxide plus nitric oxide and carbon bisulfate in a laboratory tube, you will most likely have an exothermic reaction that results in a sound similar to that of a dog barking .
  • Breathing can also generate an exothermic reaction. The cells of your lungs, by combining glucose with oxygen, are transformed, releasing carbon dioxide and heat.
  • When you put   water in the fridge to freeze it , that water releases heat so it can harden. This process of releasing energy is an exothermic reaction.
  • Mixing potassium chlorate with edible gummy bears and exposing it to high temperatures can cause an explosion.
  • By combining hydrogen peroxide with potassium permanganate , you cause the hydrogen peroxide to break down and release large amounts of smoke and heat.

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