Ozone (O₃)in the Atmosphere Can Be Converted to Oxygen Gas $\Delta$

question 50

Multiple Choice

Ozone (O₃) in the atmosphere can be converted to oxygen gas by reaction with nitric oxide (NO) . Nitrogen dioxide is also produced in the reaction. What is the enthalpy change when 8.50L of ozone at a pressure of 1.00 atm and 25°C reacts with 12.00 L of nitric oxide at the same initial pressure and temperature? [ $\Delta$ H°_f(NO) = 90.4 kJ/mol; $\Delta$ H°_f(NO₂) = 33.85 kJ/mol; $\Delta$ H°_f(O₃) = 142.2 kJ/mol]

• A)-69.2 kJ
• B)-19.7 kJ
• C)-1690 kJ
• D)-97.6 kJ
• E)-167 kJ

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