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REACCIONES QUÍMICAS ENDOTÉRMICAS Y EXOTÉRMICAS

Las reacciones químicas pueden se clasificadas según la interacción que tengan con su entorno, y están pueden ser endotérmicas o exotérmicas.

REACCIONES QUÍMICAS ENDOTÉRMICAS

Las reacciones químicas endotérmicas con aquellas que requieren se les suministre energía del exterior para que puedan llevarse a cabo.

Esto debido a que el contenido energético de los productos (compuestos finales) es mayor que el contenido energético de los reactivos (compuestos iniciales)

REACCIONES QUÍMICAS EXOTÉRMICAS

Las reacciones químicas exotérmicas son aquellas que “expulsan o liberan” energía al exterior.

Ejemplos de reacciones endotérmicas y exotérmicas.

Reacciones endotérmicas:

1.- La fusión del hielo. EL hielo absorbe calor para convertirse en líquido.

2.- La fotosíntesis donde se absorbe energía solar para formar moléculas de glucosa.

Reacciones exotérmicas:

1.- La combustión, como quemar gas metano.

2.- El metabolismo donde se transforman las biomoléculas de los alimentos para obtener otras moléculas energéticas para la célula y en el proceso se genera calor.

Mas ejemplos, ejercicios y preguntas clave de examen, en nuestras guías digitales.

error: Contenido Protegido !!
Curso para la UNAM

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