Question 1 : The standard enthalpies of formation, at 25.00 °C, of methanol (CH40(1)), water (H2O(1)), and carbon dioxide (CO2(g)) are, respectively, -238.7 kJ/mol, -285.8 kJ/mol, and -393.5 kJ/mol. Calculate the change in the entropy of the surroundings (in J/K) upon the combustion of 13.3 g of methanol under a constant pressure of 1.000 atm and a temperature of 25.00 °C. N.B. combustion is the reaction of this substance with molecular oxygen to produce water and carbon dioxide.
Question 1 : The standard enthalpies of formation, at 25.00 °C, of methanol (CH40(1)), water (H2O(1)), and carbon dioxide (CO2(g)) are, respectively, -238.7 kJ/mol, -285.8 kJ/mol, and -393.5 kJ/mol. Calculate the change in the entropy of the surroundings (in J/K) upon the combustion of 13.3 g of methanol under a constant pressure of 1.000 atm and a temperature of 25.00 °C. N.B. combustion is the reaction of this substance with molecular oxygen to produce water and carbon dioxide.
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 5.61QE: When 7.11 g NH4NO3 is added to 100 mL water, the temperature of the calorimeter contents decreases...
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Transcribed Image Text:Question 1 :
The standard enthalpies of formation, at 25.00 °C, of methanol (CH40(1)), water (H2O(1)), and carbon dioxide (CO2(g)) are, respectively, -238.7 kJ/mol, -285.8 kJ/mol, and -393.5 kJ/mol. Calculate the change in the entropy of the surroundings (in J/K) upon the combustion of 13.3 g of methanol
under a constant pressure of 1.000 atm and a temperature of 25.00 °C. N.B. combustion is the reaction of this substance with molecular oxygen to produce water and carbon dioxide.
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