Determine the Entropy Change for the Reaction SO₂(g) $$\frac { 1 } { 2 }$$

question 136

Multiple Choice

Determine the entropy change for the reaction SO₂(g) + $$\frac { 1 } { 2 }$$ O₂(g) $\rightarrow$ SO₃(g) given the following information: $$\begin{array} { l c } \text { Substance } & \boldsymbol { S } ^ { \circ } ( \mathbf { J } / \mathbf { m o l } \cdot \mathbf { K } ) \\\mathrm { SO } _ { 2 } ( g ) & 248.2 \\\mathrm { O } _ { 2 } ( g ) & 205.0 \\\mathrm { SO } _ { 3 } ( g ) & 256.8\end{array}$$

• A) -196.4 J/K
• B) +196.4 J/K
• C) -93.9 J/K
• D) +93.9 J/K
• E) +401.4 J/K

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Definitions:

Earth's Atmosphere

The layer of gases surrounding Earth, essential for life, as it provides air, protects from harmful rays of the sun, and maintains the planet's temperature.

CFCs

Chlorofluorocarbons, a class of chemical compounds used in refrigeration, air conditioning, and aerosol propellants, known to contribute to ozone depletion.

Troposphere

The lowest layer of Earth's atmosphere where most of the planet's weather occurs, extending up to about 10 km above the surface.

Chemically Unreactive

Describes substances that do not easily undergo chemical reactions or change their chemical structure in the presence of other substances.