Given that a chlorine-oxygen bond in ClO2(g) has an enthalpy of 243 kJ/molkJ/mol , an oxygen-oxygen bond has an enthalpy of 498 kJ/molkJ/mol , and the standard enthalpy of formation of ClO2(g) is? ΔH∘f=102.5kJ/molΔHf∘=102.5kJ/mol , use Hess's law to calculate the value for the enthalpy of formation per mole of ClO(g).

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction