Confunsed about reactions in equilibrium

In summary, a reaction in equilibrium is when the forward and reverse reactions occur at equal rates, resulting in no net change in reactant and product concentrations. Equilibrium is achieved when the rates of these reactions are equal, and can be affected by changes in temperature, pressure, and concentration. Catalysts do not affect equilibrium, but can speed up the process. Equilibrium can be altered or broken through changes in conditions such as concentration, temperature, and pressure.
  • #1
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Hey guys, in a reaction like 1A + 1B <-> 1C + 1D, which starts with 1 mol of each molecule (A,B,C,D), how can I find out how many mols will be remaining in equilibrium state?

knowing that the Keq is equal to 4
 
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  • #2
Write out the equation that defines Keq. Hopefully you will see that, at least together with a very simple and elementary principle of chemistry (as well as of physics) you have all the information needed to solve the problem.
 

1. What is a reaction in equilibrium?

A reaction in equilibrium is a state in which the forward and reverse reactions are occurring at equal rates, resulting in no net change in the concentration of reactants and products.

2. How is equilibrium reached in a chemical reaction?

Equilibrium is reached when the rates of the forward and reverse reactions are equal. This can occur when the concentrations of reactants and products reach a constant value, or when the system reaches a state of dynamic equilibrium in which the concentrations of reactants and products are constantly changing but the overall ratio remains constant.

3. What factors can affect the position of equilibrium in a chemical reaction?

The position of equilibrium can be affected by changes in temperature, pressure, and concentration. Changes in these factors can shift the equilibrium towards the reactants or products, resulting in changes in the concentrations of reactants and products at equilibrium.

4. How do catalysts affect equilibrium in a chemical reaction?

Catalysts do not affect the position of equilibrium in a chemical reaction, but they can increase the rate at which equilibrium is reached by lowering the activation energy required for the reaction. This results in a faster attainment of equilibrium with the same concentrations of reactants and products.

5. Can equilibrium be altered or broken in a chemical reaction?

Yes, equilibrium can be altered or broken through changes in the conditions of the reaction. For example, if the concentration of reactants or products is changed, the equilibrium will shift to reach a new state of equilibrium. Similarly, changes in temperature or pressure can also alter the position of equilibrium in a chemical reaction.

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