What Is the Entropy Change If 4 $\leftrightarrow$ CaO(s) + CO₂(g)

question 144

Multiple Choice

What is the entropy change if 4.500 g of CaCO₃(s) is placed in a container and allowed to decompose to CaO(s) and CO₂(g) according to the following reaction?
CaCO₃(s) $\leftrightarrow$ CaO(s) + CO₂(g) $$\begin{array} { c c } \text { Substance } & \boldsymbol { S } ^ { \circ } ( \mathbf { J } / \mathbf { m o l } \cdot \mathbf { K } ) \\\mathrm { CaCO } _ { 3 } ( s ) & 92.88 \\\mathrm { CaOO } ( s ) & 39.75 \\\mathrm { CO } _ { 2 } ( g ) & 213.6\end{array}$$

• A) +7.2 J/K
• B) -160.5 J/K
• C) +35.7 J/K
• D) +160.5 J/K
• E) +3.57 J/K

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