Answer to Question #204845 in General Chemistry for jose

Question

The standard enthalpies of formation, at 25.00 ^oC, of methanol (CH₄O(l)), water (H₂O(l)), 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 12.4 g of methanol under a constant pressure of 1.000 atm and a temperature of 25.00 ^oC. N.B. combustion is the reaction of this substance with molecular oxygen to produce water and carbon dioxide.

Answer 1

Change in the entropy of the surroundings=11.03 J/K