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Acetylene (C₂H₂) and benzene (C6H6) have the same empirical formula. In fact, benzene can be made from acetylene as follows: 3C₂H₂(g) → CH (1) kJ kJ The enthalpies of combustion for C₂H₂ and CH are -1302.0 and -3267.8 , respectively. Calculate the standard enthalpies of formation of C₂H₂ and C H. Assume that the products of the combustions are CO₂ (g) and H₂O (1). mol mol Note: Reference the Thermodynamic properties of pure substances table for additional information. Part: 0 / 2 Part 1 of 2 Calculate the standard enthalpies of formation of C₂H₂ and C.H. Round your answer to 4 significant digits. kJ AH (C₂H₂) = - ΔΗ° (CH.) mol Round your answer to 2 significant digits. kJ X

Acetylene (C₂H₂) and benzene (C6H6) have the same empirical formula. In fact, benzene can be made from acetylene as follows: 3C₂H₂(g) → CH (1) kJ kJ The enthalpies of combustion for C₂H₂ and CH are -1302.0 and -3267.8 , respectively. Calculate the standard enthalpies of formation of C₂H₂ and C H. Assume that the products of the combustions are CO₂ (g) and H₂O (1). mol mol Note: Reference the Thermodynamic properties of pure substances table for additional information. Part: 0 / 2 Part 1 of 2 Calculate the standard enthalpies of formation of C₂H₂ and C.H. Round your answer to 4 significant digits. kJ AH (C₂H₂) = - ΔΗ° (CH.) mol Round your answer to 2 significant digits. kJ X

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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Acetylene (C₂H₂) and benzene (CH) have the same empirical formula. In fact, benzene can be made from acetylene as follows: 3C₂H₂(g) → CH (1) kJ kJ The enthalpies of combustion for C₂H₂ and CH are -1302.0 and -3267.8 , respectively. Calculate the standard enthalpies of formation of C₂H₂ and C H. Assume that the products of the combustions are CO₂ (g) and H₂O (1). mol mol Note: Reference the Thermodynamic properties of pure substances table for additional information. Part: 0 / 2 Part 1 of 2 Calculate the standard enthalpies of formation of C₂H₂ and C.H. Round your answer to 4 significant digits. kJ AH (C₂H₂) = - mol Round your answer to 2 significant digits. kJ AH (CH)= mol X 3
Transcribed Image Text:Acetylene (C₂H₂) and benzene (CH) have the same empirical formula. In fact, benzene can be made from acetylene as follows: 3C₂H₂(g) → CH (1) kJ kJ The enthalpies of combustion for C₂H₂ and CH are -1302.0 and -3267.8 , respectively. Calculate the standard enthalpies of formation of C₂H₂ and C H. Assume that the products of the combustions are CO₂ (g) and H₂O (1). mol mol Note: Reference the Thermodynamic properties of pure substances table for additional information. Part: 0 / 2 Part 1 of 2 Calculate the standard enthalpies of formation of C₂H₂ and C.H. Round your answer to 4 significant digits. kJ AH (C₂H₂) = - mol Round your answer to 2 significant digits. kJ AH (CH)= mol X 3
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