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Sumario Resumen explicativo: Cinética Química $3.75   Add to cart

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Sumario Resumen explicativo: Cinética Química

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¡Vas a encontrar todo lo que necesitas para entender y aprender! Conceptos, definiciones, explicaciones y ejemplos. Química General - Universidad Nacional de Luján

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  • March 31, 2021
  • 62
  • 2018/2019
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CINÉTICA QUÍMICA

,Factores que afectan a la velocidad de
una reacción.
• La concentración de reactivos y productos.
• La temperatura.
• El estado de agregación:
Fe (en polvo) + H2SO4 (diluido) → reacc. Rápida
Clavo de Fe + H2SO4 (diluido) → reacc. Lenta
(Las reacciones anteriores, tienen que ver con la
superficie de contacto o grado de pulverización de los
reactivos).

,Factores que afectan a la velocidad de
una reacción
• La Naturaleza del estado de agregación:

K2SO4 (s) + Ba(NO3)2 (s) → No hay reacción
SO42- (ac) + Ba2+(ac) → BaSO4 ↓(ppdo blanco) (rápido)

• Presencia de catalizadores:
– Pueden aumentar la velocidad.
– Pueden disminuir la velocidad.
(su efecto tiene que ver con la energía de
activación, cuestión que veremos más adelante).

, Concepto de velocidad de aparición o
desaparición de una especie química.

2 N2O5(g) 4NO2(g) + O2(g)

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