The Enthalpy and Entropy of Vaporization of Ammonia at Its $\circ$

question 122

Multiple Choice

The enthalpy and entropy of vaporization of ammonia at its normal boiling point,-33.34 ^$\circ$ C,are approximately 23.35 kJ/mol and 97.4 J/mol . K,respectively.What would the entropy change of the universe be if one mole of ammonia vapor were to condense in a large room maintained at 30.0 ^$\circ$ C?

• A)"+20.4 J/K"
• B)"+77.0 J/K"
• C)"-174.4 J/K"
• D)"-20.4 J/K"
• E)"+174.4 J/K"

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