Sapling Learning Map The 1995 Nobel Prize in Chemistry was shared by Paul Crutzen, F. Sherwood Rowland, and Mario Molina for their work concerning the formation and deco Molina hypothesized that chlorofluorocarbons (CFCs) in the stratosphere break down upon exposure to UV radiation, producing chlorine atoms. Chlorine was previously identified as a catalyst in the breakdown of ozone into oxygen gas. sition of ozone in the stratosphere. Rowland and resacd ono f ohiohinve of te aczion for two reactions with ozone, delermine the enthalpy of reaction for the reaction of chlorine with ozone (1) cio(g) +03(g) â CI(g) +2O2(g) (2) 203(g) â 302(g) (3) 0,W-Cl(g) â CIO(g)+02 Î11ã.... 122.8 kJ Hrxn =-285.3 kJ rxn kJ -O Previous & Give Up & View Solution O Check Answer 0 Next 1 Exit--