Preguntas sobre Equilibrio Químico
Quiz
•
Chemistry
•
10th Grade
•
Hard
Docente Ximena Avila Díaz
FREE Resource
52 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
¿Qué caracteriza a un sistema en equilibrio químico?
Las velocidades de las reacciones directa e inversa son iguales
Los reactivos se han consumido completamente
La temperatura del sistema es constante
No hay intercambio de energía
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
La constante de equilibrio Kc para la reacción aA + bB ⇌ cC + dD se expresa como:
Kc = [A]^a[B]^b / [C]^c[D]^d
Kc = [C]^c[D]^d / [A]^a[B]^b
Kc = [A][B] / [C][D]
Kc = [C][D] / [A][B]
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Si Kc = 1 × 10^6, esto indica que:
El equilibrio favorece a los reactivos
El equilibrio favorece a los productos
El equilibrio está balanceado
La reacción es muy lenta
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Un valor de Kc = 2.5 × 10^-8 sugiere que:
Los productos predominan en el equilibrio
Los reactivos predominan en el equilibrio
La reacción es irreversible
No hay equilibrio químico
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
¿Cuál factor NO afecta el valor de la constante de equilibrio?
La temperatura
La concentración inicial de reactivos
La naturaleza de los reactivos
La presión (para gases)
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Para la reacción N₂ + 3H₂ ⇌ 2NH₃, si en el equilibrio [N₂] = 0.2 M, [H₂] = 0.3 M y [NH₃] = 0.4 M, ¿cuál es Kc?
9.88
19.75
29.63
39.51
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Si Kc = 4 para A ⇌ B, ¿cuál es Kc para 2A ⇌ 2B?
4
8
16
2
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