Use the Free Energies of Formation Given Below to Calculate

question 101

Multiple Choice

Use the free energies of formation given below to calculate the equilibrium constant (K) for the following reaction at 298 K: 2HNO₃(aq) + NO(g) → 3 NO₂(g) + H₂O(l) K = ?
Δ_fG° (kJ mol^-1) -110.9 87.6 51.3 -237.1

• A) 8.71 × 10⁸
• B) 0.980
• C) 1.15 × 10^-9
• D) 1.02
• E) 5.11 × 10^-4

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Definitions:

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A condition characterized by the hardening and narrowing of the arteries due to the build-up of plaque, which can lead to cardiovascular diseases.

Plaques

Accumulation of substances such as fats, cholesterol, and other materials on the arterial walls, often leading to cardiovascular diseases.

Type A Behavior Pattern

A personality style characterized by high levels of competitiveness, self-imposed stress, and a constant sense of urgency.

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A condition characterized by reduced blood flow to the heart muscle due to the build-up of plaque in the arteries of the heart, which can lead to heart attacks.