Ammonia Is Synthesized from Nitrogen and Hydrogen Gases

question 12

Multiple Choice

Ammonia is synthesized from nitrogen and hydrogen gases. N₂(g) + 3H₂(g) → 2NH₃(g)
If ΔH° = −92.2 kJ and ΔS° = −0.1987 kJ/K,at what temperature will ΔG° = 0?

• A) 0.00216 K
• B) 18.3 K
• C) 92.0 K
• D) 464 K
• E) 672 K

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Definitions:

Representative Clade

A collection of organisms consisting of a common ancestor and all its direct offspring, signifying one lineage on the evolutionary tree.

Supergroup

In phylogenetics, a high-level taxonomic rank above the rank of kingdom, used to organize the diversity of eukaryotes especially.

Alveolates

A group of protists, including dinoflagellates, apicomplexans, and ciliates, characterized by the presence of alveoli (small sac-like structures) beneath their cell membranes.

Representative Clade

A group of organisms that includes an ancestor and all of its descendants, representing a single branch on the tree of life.