Ammonia Is Synthesized from Nitrogen and Hydrogen Gases at a Temperature

question 23

Multiple Choice

Ammonia is synthesized from nitrogen and hydrogen gases at a temperature of 475°C. N₂(g) + 3H₂(g) → 2NH₃(g)
If ΔH° = −92.2 kJ and ΔS° = −0.1987 kJ/K,what is ΔG° for the reaction at 575°C?

• A) −260.7 kJ
• B) −186.6 kJ
• C) −92.0 kJ
• D) +2.2 kJ
• E) +76.3 kJ

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