For a general reaction: aA + bB ⇌ cC + dD where all of the reactants and products are gases, either the equilibrium constant expression, Kc in units of mol/L, or the expression below can be used. What do the terms pA, pB, pC,and pD mean?
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Write the equilibrium-constant expression for the reaction shown in terms of [A], [B], [C], and [D]: 3A(g) + B(g) = 2C(g) + 2D(g) Note that Kc, which is sometimes symbolized as K or Keq, denotes that the equilibrium constant is expressed using molar concentrations. For this question, Kc means the same thing as K and Keq.
Sri K.
Write the equilibrium-constant expression for the reaction shown in terms of [A], [B], [C], and [D]. 3A(g) + B(g) ⇌ 2C(g) + 2D(g) Note that Kc, which is sometimes symbolized as K or Keq, denotes that the equilibrium constant is expressed using molar concentrations. For this question, Kc means the same thing as K and Keq.
Maitreya E.
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc , which is a mathematical expression based on the chemical equation. For example, in the reaction aA+bB⇌cC+dD where a , b , c , and d are the stoichiometric coefficients, the equilibrium constant is Kc=[C]c[D]d[A]a[B]b where [A] , [B] , [C] , and [D] are the equilibrium concentrations. If the reaction is not at equilibrium, the quantity can still be calculated, but it is called the reaction quotient, Qc , instead of the equilibrium constant, Kc . Qc=[C]tc[D]td[A]ta[B]tb where each concentration is measured at some arbitrary time t . Part A A mixture initially contains A, B, and C in the following concentrations: [A] = 0.600 M , [B] = 1.10 M , and [C] = 0.450 M . The following reaction occurs and equilibrium is established: A+2B⇌C At equilibrium, [A] = 0.490 M and [C] = 0.560 M . Calculate the value of the equilibrium constant, Kc. Express your answer numerically.
Adi S.
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