Question

difference between exothermic and endothermic
3 marks​

Answer 1

Exothermic reactions are reactions or processes that release energy, usually in the form of heat or light. In an exothermic reaction, energy is released because the total energy of the products is less than the total energy of the reactants.

Endothermic reactions are reactions that require external energy, usually in the form of heat, for the reaction to proceed. Since endothermic reactions draw in heat from their surroundings, they tend to cause their environments to cool down. They are also generally non-spontaneous since endothermic reactions yield products that are higher in energy than the reactants. As such, the change in enthalpy for an endothermic reaction is always positive.

Answer 2

chemical reactions that proceed with the evolution of heat along with the formation of products are called Exothermic Reactions.

The chemical Reactions that proceed with the absorption of heat along with the formation of products are called Endothermic Reactions.

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