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26 June, 09:48

In the following reaction, what is the effect of adding more NO2 to the starting reaction mixture?

2NO2 (g) ⇌ N2O4 (g)

It would increase the final quantity of products

It would make the reaction more endothermic

It would slow the reaction down.

It would decrease the final quantity of products

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  1. 26 June, 10:13
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    It would increase the final quantity of products

    Explanation:

    Consider the following reaction.

    Chemical reaction:

    2NO₂ ⇄ N₂O₄

    In this reaction the equilibrium is disturb by increasing the concentration of reactant.

    When the concentration of reactant is increased the system will proceed in forward direction in order to regain the equilibrium. Because when reactant concentration is high it means reaction is not on equilibrium state. As the concentration of NO₂ increased the reaction proceed in forward direction to regain the equilibrium state and more product is formed.

    According to the Le - Chatelier principle,

    At equilibrium state when stress is applied to the system, the system will behave in such a way to nullify the stress.

    The equilibrium can be disturb,

    By changing the concentration

    By changing the volume

    By changing the pressure

    By changing the temperature
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