The 1995 Nobel Prize in Chemistry was shared by Paul Crutzen, F. Sherwood Rowland, and Mario Molina for their work concerning the formation and decomposition of ozone in the stratosphere. Rowland and 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. Using the enthalpy of reaction for two reactions with ozone, determine the enthalpy of reaction for the reaction of chlorine with ozone. (1) CIO(g) + O₂(g) Cl(g) +20₂(g) AHixn = -122.8 kJ (2) 203(g) - 30₂ (g) AHxn=-285.3 kJ (3) 03(g) + Cl(g) → ClO(g) + O₂(g) AHxn = ? AHixn= kJ

The 1995 Nobel Prize in Chemistry was shared by Paul Crutzen, F. Sherwood Rowland, and Mario Molina for their work concerning the formation and decomposition of ozone in the stratosphere. Rowland and 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. Using the enthalpy of reaction for two reactions with ozone, determine the enthalpy of reaction for the reaction of chlorine with ozone. (1) CIO(g) + O₂(g) Cl(g) +20₂(g) AHixn = -122.8 kJ (2) 203(g) - 30₂ (g) AHxn=-285.3 kJ (3) 03(g) + Cl(g) → ClO(g) + O₂(g) AHxn = ? AHixn= kJ

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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O Macmillan Learning
The 1995 Nobel Prize in Chemistry was shared by Paul Crutzen, F. Sherwood Rowland, and Mario Molina for their work
concerning the formation and decomposition of ozone in the stratosphere. Rowland and 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.
Using the enthalpy of reaction for two reactions with ozone, determine the enthalpy of reaction for the reaction of chlorine
with ozone.
(1) CIO(g) + 03 (g) → Cl(g) + 2O₂(g)
(2)
203(g)
30₂(g)
(3) 03(g) + Cl(g) →→→ ClO(g) + O₂(g)
▲Hixn =
AHxn
▲Hixn
AHixn
=
= -122.8 kJ
= -285.3 kJ
=
?
kJ

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