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    Is every reversible reaction in equilibrium regardless of any conditions in a closed system? If the conditions are changed, how does the equilibrium becomes stable again?
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    (Original post by Imad8492)
    Is every reversible reaction in equilibrium regardless of any conditions in a closed system? If the conditions are changed, how does the equilibrium becomes stable again?
    Yes, in any conditions in which the reaction can occur and given enough time for the equilibrium to establish.

    A change in conditions will effect the rate of the forward and reverse reactions so that they are at that moment no longer equal. The concentrations will change as one reaction is now quicker than the other, and the forward and reverse reaction rates gradually converge to be equal once more. The concentrations of reagents and products are then reflecting the new 'position of equilibrium'.
 
 
 
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