Calculate Δ_rS° for the Following Reaction

question 17

Multiple Choice

Calculate Δ_rS° for the following reaction. The S° for each species is shown below the reaction. 4NH₃(g) + 5O₂(g) → 4NO(g) + 6H₂O(g)
S°(J K^-1 mol^-1) 192.8 205.2 210.8 188.8

• A) +287.4 J K^-1 mol^-1
• B) -401.2 J K^-1 mol^-1
• C) +160.0 J K^-1 mol^-1
• D) -336.6 J K^-1 mol^-1
• E) +178.8 J K^-1 mol^-1

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Definitions:

Uplift

The process by which areas of the Earth's crust are raised to higher elevations, often as a result of geological forces such as tectonic movements.

Mid-ocean Ridges

Underwater mountain ranges where new oceanic crust is formed through volcanic activity.

Oceanic Crust

The part of the Earth's crust that underlies the oceans. It is thinner, denser, and younger than the continental crust.

Continental Rift

A linear zone where the Earth's crust and lithosphere are being pulled apart and is characterized by seismic activity and volcanic eruptions.