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8. When 1.050g of diethylene glycol, CHÃO², undergoes complete combustion, it gives 10 3 off 23.50 kJ of heat to the surroundings. Calculate the standard enthalpy of formation of liquid diethylene glycol. Assume the initial reactants and products of the combustion are at 25°C and 1 atm pressure. (standard heats of formation of CO₂ (g) and H₂O (1) are -393.5 and -285.8 kJ/mol respectively)

8. When 1.050g of diethylene glycol, CHÃO², undergoes complete combustion, it gives 10 3 off 23.50 kJ of heat to the surroundings. Calculate the standard enthalpy of formation of liquid diethylene glycol. Assume the initial reactants and products of the combustion are at 25°C and 1 atm pressure. (standard heats of formation of CO₂ (g) and H₂O (1) are -393.5 and -285.8 kJ/mol respectively)

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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8. When 1.050g of diethylene glycol, CHO3, undergoes complete combustion, it gives off 23.50 kJ of heat to the surroundings. Calculate the standard enthalpy of formation of liquid diethylene glycol. Assume the initial reactants and products of the combustion are at 25°C and 1 atm pressure. (standard heats of formation of CO₂ (g) and H₂O (1) are -393.5 and -285.8 kJ/mol respectively)
Transcribed Image Text:8. When 1.050g of diethylene glycol, CHO3, undergoes complete combustion, it gives off 23.50 kJ of heat to the surroundings. Calculate the standard enthalpy of formation of liquid diethylene glycol. Assume the initial reactants and products of the combustion are at 25°C and 1 atm pressure. (standard heats of formation of CO₂ (g) and H₂O (1) are -393.5 and -285.8 kJ/mol respectively)
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