What is the change in entropy when 7.61 mL of liquid benzene (C6H6, d = 0.879 g/mL) is combusted in the presence of 22.3 L of oxygen gas, measured at 298 K and 1 atm pressure?  (R = 0.0821 L · atm/(K · mol))

2C6H6(l) + 15O2(g) → 12CO2(g) + 6H2O(l); ΔS° = -437.7 J/K at 298 K

Question 3 options:

398 J/K

45.3 J/K

37.4 J/K

18.7 J/K

436 J/K

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