At a certain temperature,K_c equals 1.4 × 10² for the reaction: 2 CO(g) + O₂(g) ⇌ 2 CO₂(g) .
If a 2.50-L flask contains 0.400 mol of CO₂ and 0.100 mol of O₂ at equilibrium,how many moles of CO are also present in the flask?

Question

Quizplus · Accepted Answer

To find the moles of CO, use the equilibrium expression: Kc = [CO2]^2 / ([CO]^2[O2]). Calculate concentrations: [CO2] = 0.400 mol / 2.50 L, [O2] = 0.100 mol / 2.50 L. Solve for [CO] using Kc = 1.4 × 10^2.

At a Certain Temperature,Kc Equals 1

At a Certain Temperature,K_c Equals 1