Determine the value of equilibrium constant (Kc) for the reaction A2(g)+B2(g) ⇌2 A B(g) If 10 mo

step 1 Here I can write the equilibrium equation as A to G plus B to G is in equilibrium with 2A B G. I

Determine the value of equilibrium constant (Kc) for the...

Determine the value of equilibrium constant $\left(K_{c}\right)$ for the reaction $$ A_{2}(g)+B_{2}(g) \rightleftharpoons 2 A B(g) $$ If 10 moles of $A_{2} ; 15$ moles of $B_{2}$ and 5 moles of $A B$ are placed in a 2 litre vessel and allowed to come to equilibrium. The final concentration of $A B$ is $7.5 M$ : (a) $4.5$ (b) $1.5$ (c) $0.6$ (d) None of these

Determine the value of equilibrium constant $\left(K_{c}\right)$ for the reaction
$$
A_{2}(g)+B_{2}(g) \rightleftharpoons 2 A B(g)
$$
If 10 moles of $A_{2} ; 15$ moles of $B_{2}$ and 5 moles of $A B$ are placed in a 2 litre vessel and allowed to come to equilibrium. The final concentration of $A B$ is $7.5 M$ :
(a) $4.5$
(b) $1.5$
(c) $0.6$
(d) None of these

Key Concepts

Chemical Equilibrium

Chemical equilibrium is the state in a reversible reaction where the rate of the forward reaction equals the rate of the reverse reaction, meaning the concentrations of the reactants and products remain constant over time. This state does not imply that the amounts of reactants and products are equal, but rather that their relative proportions have reached a balance according to the reaction dynamics.

Equilibrium Constant (Kc)

The equilibrium constant, denoted as Kc, is a numerical value that expresses the ratio of the concentrations of products to reactants at equilibrium, with each concentration raised to the power of its stoichiometric coefficient. It serves as a measure of the extent to which a reaction proceeds and provides insights into whether the equilibrium favors products or reactants.

ICE Table Method

The ICE table (Initial, Change, Equilibrium) is a systematic tool used to determine the concentrations of reactants and products at equilibrium. By organizing initial concentrations, the changes that occur as the system reaches equilibrium, and the resulting equilibrium concentrations, the ICE table simplifies the process of relating these quantities with the reaction’s stoichiometry.

Stoichiometry

Stoichiometry involves using the coefficients in a balanced chemical equation to relate the amounts of reactants and products involved in the reaction. It is crucial for calculating how changes in the quantity of one substance affect the others, particularly in deriving relationships required to set up and solve equilibrium expressions such as those used in Kc calculations.

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