For the following equilibrium reaction, predict the direction of the equilibrium

Question

For the following equilibrium reaction, predict the direction of the equilibrium shift by specifying if each stress will cause the concentration of reactants or products to increase

NH3(g)+H2O(l) NH4+(aq)+OH(aq)

Drag the appropriate stresses to their respective bins.

Adding NH4+(aq)     Adding NH3(g)    Adding OH-(aq)      Removing NH4+(aq)      Removing OH-(aq)

Shifts in the direction of the reactants:

Shift in the direction of the products:

Shifts in the direction of the reactants:

Shift in the direction of the products:

Explanation / Answer

First, let us state the Le Chatelier principle which deals with changes in an equilibrium:

The statement is as follows:

If any equilibrium is disturbed, that is, change in conditions such as P,T, concentration, partial pressure, etc.., the system will counterbalance such change in order to favour the system's equilbirium.

For:

NH3(g)+H2O(l) NH4+(aq)+OH(aq)

Adding NH4+(aq) --> increases product, therefore, the reaciton shift to the LEFT

Adding NH3(g) --> increase in reactants, shift goes to the RIGTH

Adding OH-(aq) --> increases product, therefore, the reaciton shift to the LEFT

Removing NH4+(aq) --> decrease in products, therefore, the reactants must form more products to counterbalnce

Removing OH-(aq) -- >decrease in products, therefore, the reactants must form more products to counterbalnce

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