Respuesta :

The energy at the beginning is low than at the end of the reaction.

Endothermic reactions gain the energy from surroundings to do the reaction. Since the thermal energy gain, the temperature of the surrounding decreases and the enthalpy for those reactions is a positive value. The products have higher energy than the reactants.

In the endothermic reaction, the total energy in the beginning is less than that in the end.

What is endothermic reaction?

The endothermic relations are those in which the reactants absorb heat from the surrounding to carry out the reaction and to make product.

These reactions absorb energy, thus lower the temperature of the surrounding.

Examples are melting ice cubes, evaporating water.

Thus, due to these reactions takes energy from surrounding, the energy in the beginning is low.

Learn more about endothermic reaction

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