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he standard enthalpy of the reaction fc CH-CU.

he standard enthalpy of the reaction fc CH-CU.

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.97QE: The enthalpy of combustion of liquid n-hexane, C6H14, is 4159.5 kJ/mol, and that of gaseous n-hexane...
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For items 11 and 12: The standard enthalpy of formation of ethane CH3CH3 (g) and ethylene (CH2=CH2) were -84.68 and +52.26 kJ/mol. The heat capacities for CH3CH3 (g), CH2=CH2 (g) and H2 (g) are 52.63, 43.56 and 28.824 J/mol K respectively. 11.) Calculate the standard enthalpy of the reaction for the hydrogenation of ethylene to ethane: CH2 = CH2 (g) + H2 (g) → CH3CH3 (g). A.) +136.94 kJ/mol B.) -136.94 kJ/mol C.) -4425 kJ/mol D.) +1.62 kJ/mol 12.) If the enthalpy of the reaction was at 298 K, what would be the enthalpy of hydrogenation of ethylene to ethane at 373 K? A.) -1.48 kJ/mol B.) +1.48 kJ/mol C.) -138.42 kJ/mol D.) -135.46 kJ/mol E.) +135.46 kJ/mol
Transcribed Image Text:For items 11 and 12: The standard enthalpy of formation of ethane CH3CH3 (g) and ethylene (CH2=CH2) were -84.68 and +52.26 kJ/mol. The heat capacities for CH3CH3 (g), CH2=CH2 (g) and H2 (g) are 52.63, 43.56 and 28.824 J/mol K respectively. 11.) Calculate the standard enthalpy of the reaction for the hydrogenation of ethylene to ethane: CH2 = CH2 (g) + H2 (g) → CH3CH3 (g). A.) +136.94 kJ/mol B.) -136.94 kJ/mol C.) -4425 kJ/mol D.) +1.62 kJ/mol 12.) If the enthalpy of the reaction was at 298 K, what would be the enthalpy of hydrogenation of ethylene to ethane at 373 K? A.) -1.48 kJ/mol B.) +1.48 kJ/mol C.) -138.42 kJ/mol D.) -135.46 kJ/mol E.) +135.46 kJ/mol
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