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3. Calculate the standard enthalpy of formation of acetylene (C2H2) from its elements: - 393.5 kJ/mol C(graphite) + O2(g) H2(g) + 0;(g) 2C,H>(g) + 50,(g) CO2(g) → H2O(1) → 4CO2(g) + 2H2O(I) AH = AHan = AHan = -285.8 kJ/mol - 2598.8 kJ/mol

3. Calculate the standard enthalpy of formation of acetylene (C2H2) from its elements: - 393.5 kJ/mol C(graphite) + O2(g) H2(g) + 0;(g) 2C,H>(g) + 50,(g) CO2(g) → H2O(1) → 4CO2(g) + 2H2O(I) AH = AHan = AHan = -285.8 kJ/mol - 2598.8 kJ/mol

Chemistry
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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3. Calculate the standard enthalpy of formation of acetylene (C2H2) from its elements: C(graphite) + O2(8) H;(g) + 0;(g) 2C,H2(g) + 502(g) → 4CO2(g) + 2H,O(I) AHan= - → CO2(g) → H,O(I) AHan = - 393.5 kJ/mol AHan = -285.8 kJ/mol 2598.8 kJ/mol
Transcribed Image Text:3. Calculate the standard enthalpy of formation of acetylene (C2H2) from its elements: C(graphite) + O2(8) H;(g) + 0;(g) 2C,H2(g) + 502(g) → 4CO2(g) + 2H,O(I) AHan= - → CO2(g) → H,O(I) AHan = - 393.5 kJ/mol AHan = -285.8 kJ/mol 2598.8 kJ/mol
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