Answer:
The equilibrium constant, K, for the given reaction: CO (g) + C/2 (g) ➝ COCl (g) is 1.2 x 10^3 at 668 K.
This means that at equilibrium, the product of the concentration of COCl gas raised to the power of 1 (as the coefficient of COCl is 1) divided by the product of the concentrations of CO gas and C/2 gas raised to the power of their respective coefficients is equal to 1.2 x 10^3 at 668 K.
The equation for the equilibrium constant expression for the given reaction is:
K = [COCl] / [CO] [C/2]
where [COCl], [CO] and [C/2] represent the equilibrium concentrations of COCl, CO, and C/2 respectively. The concentration units used should be the same for all species, such as moles per liter (M).
Step-by-step explanation: