Use LeChâtelier's principle to predict whether each the following changes causes the system to shift in the direction of products or reactants:
Drag the appropriate items to their respective bins.
HC, H302 (ag) + H20(1) = C2H302 (aq) + H30+ (ag)
removing some HC2H302 (aq)
removing some С2Н302- (aq)
adding more НС2Нз02 (aq)
adding more C2H302- (aq)
Removing some HC2H302 (aq) - Shifts in the direction of reactants
Removing some С2Н302- (aq) - Shifts in the direction of products
Adding more НС2Нз02 (aq) - Shifts in the direction of products
Adding more C2H302- (aq) - Shifts in the direction of reactants
To predict whether each of the given changes causes the system to shift in the direction of products or reactants using Le Châtelier's principle, we need to consider the effect of each change on the equilibrium position of the reaction.
Le Châtelier's principle states that when a system at equilibrium is subjected to a change in concentration, pressure, or temperature, the system will adjust its equilibrium position to counteract the change and establish a new equilibrium.
Now let's analyze each change individually:
1. Removing some HC2H302 (aq):
Since the reactant HC2H302 is being removed, according to Le Châtelier's principle, the system will shift in the direction that forms more HC2H302. Therefore, the system will shift towards the reactants.
2. Removing some С2Н302- (aq):
Removing the product С2Н302- (aq) will result in a decrease in its concentration. To counteract this change, the system will shift in the direction that produces more С2Н302- (aq) by favoring the forward reaction. Thus, the system will shift towards the products.
3. Adding more НС2Нз02 (aq):
By adding more HC2H302 (aq), the concentration of the reactant will increase. According to Le Châtelier's principle, the system will shift in the direction that consumes the excess reactant. Therefore, the system will shift towards the products.
4. Adding more C2H302- (aq):
When more C2H302- (aq) is added, its concentration increases. Again, following Le Châtelier's principle, the system will shift in the direction that consumes the excess product. Therefore, the system will shift towards the reactants.
To summarize:
Removing some HC2H302 (aq) shifts towards reactants.
Removing some С2Н302- (aq) shifts towards products.
Adding more НС2Нз02 (aq) shifts towards products.
Adding more C2H302- (aq) shifts towards reactants.
To use Le Châtelier's principle to predict how the system will shift based on the changes mentioned, we need to consider what effect each change would have on the concentrations of reactants and products.
Le Châtelier's principle states that if a system at equilibrium is subjected to a change, the system will shift in the direction that counteracts the change to restore equilibrium.
Now, let's analyze each change mentioned and determine whether it will cause the system to shift towards the products or reactants:
1. Removing some HC2H302 (aq): This change will decrease the concentration of HC2H302 on the left side of the equation. According to Le Châtelier's principle, the system will shift in the direction that will increase the concentration of HC2H302, which means it will shift towards the reactants.
2. Removing some С2Н302- (aq): This change will decrease the concentration of С2Н302- on the right side of the equation. Le Châtelier's principle tells us that the system will shift in the direction that increases the concentration of С2Н302-, which means it will shift towards the products.
3. Adding more НС2Нз02 (aq): This change will increase the concentration of HC2H302 on the left side of the equation. As a result, the system will shift in the direction that decreases the concentration of HC2H302, which means it will shift towards the products.
4. Adding more C2H302- (aq): This change will increase the concentration of C2H302- on the right side of the equation. According to Le Châtelier's principle, the system will shift in the direction that decreases the concentration of C2H302-, which means it will shift towards the reactants.
Therefore, the system will shift towards the reactants for the changes of removing HC2H302 (aq) and adding more C2H302- (aq). On the other hand, it will shift towards the products for the changes of removing С2Н302- (aq) and adding more HC2H302 (aq).