Exercises: The equilibrium constant
Write the expression of the equilibrium constant $K_c$ for the synthesis of ammonia: $\text{N}2 + 3\ \text{H}2 \rightleftharpoons 2\ \text{NH}3$.
Write the expression of the equilibrium constant $K_c$ for the synthesis of ammonia: $\text{N}_2 + 3\ \text{H}_2 \rightleftharpoons 2\ \text{NH}_3$.
At a certain temperature, the equilibrium $\text{PCl}5 \rightleftharpoons \text{PCl}3 + \text{Cl}2$ reaches these concentrations:…
At a certain temperature, the equilibrium $\text{PCl}_5 \rightleftharpoons \text{PCl}_3 + \text{Cl}_2$ reaches these concentrations: $[\text{PCl}_5] = 0.20\ \text{mol}/\text{L}$, $[\text{PCl}_3] = 0.10\ \text{mol}/\text{L}$ and $[\text{Cl}_2] = 0.10\ \text{mol}/\text{L}$. Calculate the value of $K_c$ at that temperature.
For the reaction $2\ \text{SO}2 + \text{O}2 \rightleftharpoons 2\ \text{SO}3$ at a certain temperature, $K_c = 4.0$. At a given moment the concentrations are…
For the reaction $2\ \text{SO}_2 + \text{O}_2 \rightleftharpoons 2\ \text{SO}_3$ at a certain temperature, $K_c = 4.0$. At a given moment the concentrations are $[\text{SO}_2] = 0.40\ \text{mol}/\text{L}$, $[\text{O}_2] = 0.20\ \text{mol}/\text{L}$ and $[\text{SO}_3] = 0.80\ \text{mol}/\text{L}$. a) Calculate the reaction quotient $Q$ with those values. b) Decide whether the system is at equilibrium and, if it is not, state which way it will shift (toward the products or toward the reactants) and why.