Calculate $\Delta$ S ^$\circ$ for the Reaction SO₂(s) + NO₂(g) $\rarr$ SO₃(g) + NO(g)

question 21

Multiple Choice

Calculate $\Delta$ S ^$\circ$ for the reaction SO₂(s) + NO₂(g) $\rarr$ SO₃(g) + NO(g) . $\begin{array}{lc}&\mathrm{S}^{\circ}(\mathrm{J} / \mathrm{K} \cdot \mathrm{~mol}) \\\hline\mathrm{SO}_{2}(\mathrm{g}) & 248.5 \\\mathrm{SO}_{3}(\mathrm{g}) & 256.2 \\\mathrm{NO}{(g) } & 210.6 \\\mathrm{NO}_{2}(\mathrm{g}) & 240.5\end{array}$

• A) 53.6 J/K·mol
• B) -53.6 J/K·mol
• C) -22.2 J/K·mol
• D) 474.8 J/K·mol
• E) -474.8 J/K·mol

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Definitions:

NMR Spectrum

A representation that displays the different environments of hydrogen or carbon atoms in a compound as a result of nuclear magnetic resonance spectroscopy.

NMR Data

pertains to information derived from Nuclear Magnetic Resonance spectroscopy, revealing details about molecular structure, dynamics, and environment.

Triplet

A term used in quantum mechanics and spectroscopy that describes a state of a system (such as an electron) with a spin quantum number of 1, indicating three possible orientations.

Doublet

A splitting pattern in spectral analysis (NMR) showing two peaks of equal intensity, indicating the presence of two magnetic nuclei split by coupling.