# 6 determine δs for the reaction so 3 g h 2 o l h 2 so

• 88

Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. This preview shows page 10 - 12 out of 88 pages.

6. Determine ΔS° for the reaction SO3(g) + H2O(l)H2SO4(l).S°(J/K·mol)SO3(g)256.2H2O(l)69.9H2SO4(l)156.9A) 169.2 J/K·molC)169.2 J/K·molE) 29.4 J/K·molB) 1343.2 J/K·molD)29.4 J/K·mol
7. HI has a normal boiling point of–35.4°C, and its ΔHvapis 21.16 kJ/mol. Calculate the molarentropy of vaporization (ΔSvap).
8. The thermodynamic condition for a spontaneous process at constant T and P is:
9. Which of the following conditions must be met for a chemical reaction to be spontaneous at alltemperatures?
ΔG°f(kJ/mol)H2O(l)237.2HNO3(l)79.9NO(g)86.7NO2(g)51.810. Calculate ΔG° for the reaction:2 NO(g) + Cl2(g)2 NOCl (g)using the following ΔGf° (in kJ/mol): NO(g) 86.55, Cl2(g) 0.00, NOCl(g) 66.35.A)40.4 kJ/molC) 40.4 kJ/molE)20.2 kJ/molB) 20.2 kJ/molD) 152.9 kJ/mol11. Use thegiven data at 298 K to calculate ΔG° for the following balanced reaction:2 Cl2(g) + SO2(g)SOCl2(g) + Cl2O(g)Substance:Cl2(g)SO2(g)SOCl2(g)Cl2O(g)ΔH°f(kJ/mol):0296.8212.580.3S°(J/K·mol):223.0248.1309.77266.1A) 129.3 kJB) 133.6 kJC) 196.0 kJD) 199.8 kJE) 229.6 kJ12. Consider the figure below which shows ΔG° for a chemical process plotted against absolutetemperature.From this plot, it is reasonable to conclude that:A) ΔH° > 0, ΔS° > 0B) ΔH° > 0, ΔS° < 0C) ΔH° < 0, ΔS° > 0D) ΔH° < 0, ΔS° < 0E) ΔH° = 0, ΔS° = 013. The reaction of methane with water to form carbon dioxide and hydrogen is non-spontaneousat 298 K.At what temperature will this system make the transition from non-spontaneous tospontaneous?The data refer to 298 K.CH4(g) + 2 H2O(g)CO2(g) + 4 H2(g)Substance:CH4(g)H2O(g)CO2(g)H2(g)ΔH°f(kJ/mol):74.87241.8393.50ΔG°f(kJ/mol):50.81228.6394.40S°(J/K·mol):186.1188.8213.7130.7A) 658 KB) 683 KC) 955 KD) 1047 KE) 1229 K14. Choose the right combination from the choices below for a forward reaction to bespontaneous:A)∆?𝑟𝑥?< 0 then Q > KC)∆?𝑟𝑥?< 0 then Q = KE)∆?𝑟𝑥??< 0 then Q < KB)∆?𝑟𝑥?< 0 then Q < KD)∆?𝑟𝑥??< 0 then Q = K15. Calculate ΔG° for the reaction 3 NO2(g) + H2O(l)2 HNO3(l) + NO(g).A) 8.7 kJB) 192 kJC)414 kJD)192 kJE)155 kJ

Course Hero member to access this document

Course Hero member to access this document

End of preview. Want to read all 88 pages?

Course Hero member to access this document

Term
Fall
Professor
BRANT
Tags
buffer solution