
test T1.cinética química
Authored by Jose eusebio Blasco Martin
Chemistry
University
31 Questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
La velocidad de una reacción química puede definirse como:
La rapidez con la que se efectúa la reacción
La cantidad de masa perdida por unidad de tiempo
Los moles de reactivo o producto, respectivamente, que se pierden o ganan por segundo
Ninguna de las respuestas anteriores es correcta
Answer explanation
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La reacción 2A + B → C + 2D es elemental, su ley de velocidad es:
V = K·[A]2·[B]
V = K·[A]·[B]2
V = K·[C]2·[D]
V = K·[C]·[D]2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El signo de la velocidad de reacción en los reactivos es...
nulo
negativo
positivo
varia
Answer explanation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El signo en la velocidad de reacción para los productos es...
negativo
nulo
variable
positivo
Answer explanation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Los factores que pueden influir en la velocidad de las reacciones químicas
Concentración
Catalizadores
Presión
Temperatura
Todas las anteriores
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La siguiente reacción es elemental:
2NOBr(g)↔ 2NO(g) + Br2(g)
Determine la ley de la velocidad para dicha reacción química:
A) V = K[NO]1/2 [Br2]
B) V = K[NOBr]
C) V = K[NOBr]2
D) V = K[NOBr] [NO]2
E) V = K[NO] [Br2]2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine la ecuación de la velocidad para la siguiente reacción:
C(S) + O2(g) ↔ CO(g)
A) V = K[C][O2]
B) V = K[C]
C) V = K[O2]
D) V = K[CO]
E) V = K[O2][CO]
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