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Using the information given below, estimate the enthalpychange for the reaction

ID: 689293 • Letter: U

Question

Using the information given below, estimate the enthalpychange for the reaction of carbon monoxide and chlorine to producephosgene.                               CO(g) + Cl2(g) -> Cl2CO(g)                           Bond                                    Average Bond Dissociation Enthalpy (kJ/mol)                           C-Cl                                           339                           Cl-Cl                                         242                            C=O                                          745                           C=O                                          1046 Using the information given below, estimate the enthalpychange for the reaction of carbon monoxide and chlorine to producephosgene.                               CO(g) + Cl2(g) -> Cl2CO(g)                           Bond                                    Average Bond Dissociation Enthalpy (kJ/mol)                           C-Cl                                           339                           Cl-Cl                                         242                            C=O                                          745                           C=O                                          1046                           C-Cl                                           339                           Cl-Cl                                         242                            C=O                                          745                           C=O                                          1046

Explanation / Answer

We Know that :       The given equation is :          CO(g) +Cl2(g) -> Cl2CO(g)        Hrxn. = Bond energy of thereactants - Bond energy of the products                    = (1046 + 242 ) kJ - [( 745 + 2 ( 339 ) ] kJ                    = -135 kJ