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Topic: effect of decreasing volume on reaction  (Read 2967 times)

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xcgirl

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effect of decreasing volume on reaction
« on: February 21, 2006, 07:55:24 PM »
I am having trouble understanding why the formation of reactants would be favored in the following reaction when the volume of the system is decreased.  

2NaHCO3 (s) --> Na2CO3 (s) + CO2 (g) + H20 (g)

anyone know??, please *delete me*!
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Offline mike

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Re:effect of decreasing volume on reaction
« Reply #1 on: February 21, 2006, 07:59:31 PM »
Presumably when you decrease the volume you also increase the pressure of the system. Increasing the pressure of a reaction involving a gas tens to drive the reaction in the opposite direction, ie the gas is less favoured at high pressure.
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