3 ejemplos de cambios de estado de la materia
Asked By Admin @ 03/11/21 & Viewed By 268 Persons
Cambios de estado de la materia 3 ejemplos de cada cambio de estado
Asked By Admin @ 03/11/21 & Viewed By 268 Persons
Cambios de estado de la materia 3 ejemplos de cada cambio de estado
La materia es todo lo que ocupa lugar en el espacio, es decir, es todo lo que vemos alrededor, incluso lo que no está a la vista del ojo humano. Puede estar en diversos estados de agregación molecular.
Los cambios que se presentan de un estado a otro o en la materia son:
1. Fusión: un sólido se convierte en liquido al someterlo a un aumento de temperatura.
2. Solidificación: cambio de líquido a sólido.
3. Sublimación: cambio de estado sólido a gaseoso y viceversa, sin pasar por el estado líquido.
4. Evaporación: cambio del estado líquido al gaseoso.
5. Condensación y licuefacción: cambio de estado gaseoso a líquido.
6. Contracción: cuerpo disminuye su tamaño por descenso de temperatura
7. Dilatación: un cuerpo aumenta su volumen al aumentar la temperatura.
10 ejemplos de cambios físicos de la materia.
1. Fusión: Cobre sólido + temperatura = cobre líquido.
2. Solidificación: lo podemos ver en los cubitos de hielo del congelador.
3. Sublimación regresiva: de gaseoso a sólido, la nieve.
4. Sublimación regresiva: el dicloro para benceno que se coloca en los baños como aromatizante.
5. Evaporación: Ocurre de forma natural en el alcohol a temperatura ambiente.
6. Condensación: De gas a líquido, la lluvia.
7. Sublimación: el hielo seco o nieve carbónica que está a más de 70 grados bajo cero al estar a temperatura ambiente se convierte directamente en gas sin pasar por líquido.
8. Contracción: Cuando un cuerpo se enfría se contrae, ejemplo el termómetro de mercurio en invierno.
9. : Dilatación: Cuando un cuerpo se calienta aumenta su volumen, ejemplo en los globos aerostáticos el calor aumenta el volumen del aire de su interior y disminuye su densidad con respecto al aire del exterior y por eso ascienden.
10. Ebullición: Igual que la evaporación, pero aplicando más temperatura; olla de agua hirviendo en la cocina.
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