Calculate the AH for the reaction: 2H,O2(1) → 2H,O(1) + O2(g) using the following chemical equations and their respective enthalpy changes: AH1 = -187.8 kJ AH2 = -571.7 kJ Discussion: Manipulate the two chemical equations so that when they are added together, the resulting chemical equation equals 2H2O2(1) → 2H2O(1) + O2(g). For each chemical equation, you may need to reverse the equation, multiply the equation by an integer, reverse the equation followed by multiplying H2(g) + O2(g) → H2O2(1) 2H2(g) + O2(g) –→ 2H;O(1) the reverse equation by an integer, or do nothing to the equation.
Calculate the AH for the reaction: 2H,O2(1) → 2H,O(1) + O2(g) using the following chemical equations and their respective enthalpy changes: AH1 = -187.8 kJ AH2 = -571.7 kJ Discussion: Manipulate the two chemical equations so that when they are added together, the resulting chemical equation equals 2H2O2(1) → 2H2O(1) + O2(g). For each chemical equation, you may need to reverse the equation, multiply the equation by an integer, reverse the equation followed by multiplying H2(g) + O2(g) → H2O2(1) 2H2(g) + O2(g) –→ 2H;O(1) the reverse equation by an integer, or do nothing to the equation.
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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Transcribed Image Text:Calculate the AH for the reaction:
2H,O2(1) → 2H,0(1) + O2(g)
using the following chemical equations and their respective enthalpy changes:
H2(g) + O2(g) → H2O2(1)
2H2(g) + O2(g) → 2H,O(1)
AH1 = -187.8 kJ
AH2 = -571.7 kJ
Discussion: Manipulate the two chemical equations so that when they are added together, the resulting
chemical equation equals 2H2O2(1) → 2H2O(1) + O2(g). For each chemical equation, you may need to
reverse the equation, multiply the equation by an integer, reverse the equation followed by multiplying
the reverse equation by an integer, or do nothing to the equation.
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