The normal boiling point of C2Cl3F3 is 47.6 °C and its molar enthalpy of vaporization is 27.49 kJ/mol. What is the change in entropy in the system in J/K when 19.4 grams of C2Cl3F3 vaporizes to a gas at the normal boiling point? A 8.87 B 4.19 C 27.5 D -8.87 E -4.19

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