Hydrogen and chlorine react to form hydrogen chloride, like this: H2(g) + Cl,(g) → 2 HCl(g)
Also, a chemist finds that at a certain temperature the equilibrium mixture of hydrogen, chlorine, and hydrogen chloride has the following composition:
compound pressure at equilibrium
H2 0.78
Cl2 1.2M
HCl 1.6M
Calculate the value of the equilibrium constant for this reaction. Round your answer to significant digits.