For the reaction,A(g)+ 2 B(g)⇌ 2 C(g),K_c = 1 × 10^-10 at 25°C.Which of the following statements is true?

Question

Quizplus · Accepted Answer

The value of the equilibrium constant (Kc) is less than 1, which indicates that the concentration of products is smaller than the concentration of reactants at equilibrium. Therefore, statement B is false.

The reaction produces two moles of product for every mole of reactant consumed, thus Δn = (2-1-1) = 0. Therefore, statement A is false.

Since Kc is very small, it can be assumed that the reverse reaction is favored over the forward reaction. Therefore, statement C is true.

The value of Kp can only differ from Kc if the reaction involves gases and the number of moles of gas changes during the reaction. However, in this case, the number of moles of gas does not change, so Kp and Kc will have the same value. Therefore, statement D is false.

For the Reaction,A(g)+ 2 B(g)⇌ 2 C(g),Kc = 1 ×

For the Reaction,A(g)+ 2 B(g)⇌ 2 C(g),K_c = 1 ×