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Question
What is the change in entropy when 5.46 mL of liquid benzene (C6H6, d=0.879g/mL) is combusted in the presence of 27.3 L of oxygen gas, measured at 298K and 1atm pressure? (R=0.0821L·atm/(K·mol))
2C6H6(l) + 15O2(g) → 12CO2(g) + 6H2O(l); 
Sº= -437.7 J/K at 298 K
A) -488 J/K
B) -46.0 J/K
C) -26.9 J/K
D) -13.4 J/K
E) -515 J/K
Answer
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