Question

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How did the change of stress (adding or removing reactants or products) cause a shift in the equilibrium system of your solutions? Use data to support your answer. Make sure you discuss all four stress changes:
Adding a reactant
Adding a product
Removing a reactant
Removing a product

Answer 1

Adding a reactant - shift towards product

Adding a product - shift towards reactant

Removing a reactant - shift towards reactant

Removing a product- shift towards product

Step-by-step explanation:

a) Reactant added – When a reactant is added to a chemical reaction which has not yet reached the equilibrium, then the added reactant is partially consumed and the reaction shifts towards the product. However, there is no effect on the K value

b) Adding a product – When a product is added, then it is partially consumed and the reaction shifts towards the reactant. Again, there is no change in K value.

c) Removing a reactant – The reaction will shift towards the reactant

d) Removing a product- The reaction will shift towards the product

Answer 2

Answer: Adding a reactant will shift the reaction towards the products.

Adding a product will shift the reaction towards the reactants.

Removing a reactant will shift the reaction towards the reactants.

Removing a product will shift the reaction towards the products.

Step-by-step explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

Adding a reactant will increase the concentration of reactants and hence the reaction will try to undo the increase by shifting the reaction towards the products.

Adding a product will increase the concentration of products and hence the reaction will try to undo the increase by shifting the reaction towards the reactants.

Removing a reactant will decrease the concentration of reactants and hence the reaction will try to undo the decrease by shifting the reaction towards the reactants.

Removing a product will decrease the concentration of products and hence the reaction will try to undo the decrease by shifting the reaction towards the products.