Final answer:
The question involves calculating the equilibrium constant for a chemical reaction which is a Chemistry concept typically covered in high school. It requires understanding and using the equilibrium expression related to the reaction's product and reactant concentrations.
Step-by-step explanation:
The student's question concerns calculating the equilibrium constant (Kc) for a chemical reaction at a given temperature.
It is a Chemistry concept often discussed in high school level courses. The equilibrium constant is a number that provides the ratio of product concentrations to reactant concentrations for a reaction at equilibrium at a given temperature.
For the specific reaction: CO(g) + H2O(g) ⇌ CO2(g) + H2(g), the student has provided a Kc value of 5.0 and asks for the equilibrium concentration of CO given other concentrations at equilibrium.
To calculate the concentration of CO at equilibrium, we can use the equation Kc = [CO2][H2] / [CO][H2O]. Rearranging this equation to solve for [CO] when Kc and the concentrations of the other species at equilibrium are known, we find that [CO] is influenced by the given Kc and the other species' concentrations.