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Arrhenius: Preguntas fáciles

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Arrhenius: Preguntas fáciles

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About this activity

Quiz breve sobre Arrhenius

Created by

Elmer Mut cach
Elmer Mut cach
Mexico

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Arrhenius: Preguntas fáciles
 

Arrhenius: Preguntas fácilesOnline version

Quiz breve sobre Arrhenius

by Elmer Mut cach
1

¿Qué describe la ecuación de Arrhenius?

2

¿Qué es un ácido Arrhenius?

3

¿Qué es una base Arrhenius?

4

Qué representa Ea en la ecuación de Arrhenius?

5

¿Qué sucede con k al aumentar la temperatura, manteniendo Ea constante?

6

¿Qué papel cumple A en la ecuación?

7

¿Qué indica un ácido fuerte en la teoría de Arrhenius?

8

¿Qué indica una base débil en Arrhenius?

9

¿Qué pasa con la velocidad si Ea se mantiene y T aumenta mucho?

10

¿Puede una sustancia ser Arrhenius ácida y no disociarse?

Explicación

La ecuación relaciona la constante de velocidad k con la energía de activación Ea, temperatura T y frecuencia de colisiones A.

Según Arrhenius, los ácidos producen iones H+ (H3O+) en solución.

Las bases Arrhenius liberan iones OH- en solución acuosa.

Ea es la energía que debe vencer las moléculas para que ocurra la reacción.

A mayor T, más moléculas superan Ea, aumentando la velocidad de reacción.

A es el factor preexponencial que depende de la orientación y frecuencia de colisiones.

Ácidos fuertes casi se disocian por completo en solución acuosa.

Las bases débiles disocian solo parcialmente para liberar OH-.

Incrementos de temperatura elevan significativamente k cuando Ea es constante.

Por definición, un ácido Arrhenius debe liberar H+ en solución.

 
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