An Exothermic Reaction | ThermoChemistry | 11th Class Chemistry

An exothermic reaction is a chemical reaction accompanied by the release of heat from the system to the environment. As an illustration, in the following chemical tube There is nitrogen gas and hydrogen gas. The gas in this tube is a system. These two gases can react to form ammonia gas.

When the surface of the tube is touched it will feel warm. This means that a certain amount of heat is released from the system, causing the surface of the chemical tube to increase in temperature. This is what is meant by the release of heat in an exothermic reaction.

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