The standard entropies of CO_{2(g)},C_{(s)},a | vedclass

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(A) The formation reaction of $CO_{2(g)}$ is: $C_{(s)} + O_{2(g)} \rightarrow CO_{2(g)}$.The standard entropy of formation $\Delta_f S^{\circ}$ is cal

Vedclass · Accepted Answer

$2.76$

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(A) The formation reaction of $CO_{2(g)}$ is: $C_{(s)} + O_{2(g)} \rightarrow CO_{2(g)}$.The standard entropy of formation $\Delta_f S^{\circ}$ is calculated as: $\Delta_f S^{\circ} = S^{\circ}(CO_{2(g)}) - [S^{\circ}(C_{(s)}) + S^{\circ}(O_{2(g)})]$.Substituting the given values: $\Delta_f S^{\circ} = 213.5 - [5.740 + 205]$.$\Delta_f S^{\circ} = 213.5 - 210.740 = 2.76 \ J \ K^{-1} \ mol^{-1}$.

The standard entropies of $CO_{2(g)}$,$C_{(s)}$,and $O_{2(g)}$ are $213.5$,$5.740$,and $205 \ J \ K^{-1} \ mol^{-1}$ respectively. The standard entropy of formation of $CO_{2(g)}$ is $...... \ J \ K^{-1} \ mol^{-1}$.

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