The reaction of CO with Cl2 gives phosgene (COCl2), a nerve gas that was used in World War I. Use the mechanism shown here to complete the following exercises: Cl2()⇌2Cl() (fast, k1 represents the forward rate constant, k−1 the reverse rate constant)
CO()+Cl()⟶COCl() (slow, k2 the rate constant)
COCl()+Cl()⟶COCl2() (fast, k3 the rate constant)
(a) Write the overall reaction.

(b) Identify all intermediates.

(c) Write the rate law for each elementary reaction.

(d) Write the overall rate law expression.

fracking or Hydraulic fracturing.

Explanation:

Okay let us fill in the gap in the question above first. Note that the capitalized word(s) is/are the missing word(s) to he filled in.

" FRACKING OR HYDRAULIC FRACTURING is a technique used to liberate oil and natural gas trapped inside impermeable rock by injecting mass quantities of highly pressurized water and chemicals into fractures.''

The statement above is very correct. The technique that is fracking or Hydraulic fracturing was invented in the year 1947 by Floyd Farris and Joseph B. Clark of Stanolind Oil and Gas Corporation. The technique ( fracking or Hydraulic fracturing) is kind of drilling method which is used in the mining and extraction of geothermal energy, oil, water and natural gas. The extraction is done by cracking the rock in the earth through the the use of a highly pressurized liquid.