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Reactions involving gold have been of particular interest to alchemists. Consider the following reactions,
\[
\begin{array}{ll}
\mathrm{Au}(\mathrm{OH})_{3}+4 \mathrm{HCl} \longrightarrow \mathrm{HAuCl}_{4}+3 \mathrm{H}_{2} \mathrm{O}, & \Delta \mathrm{H}=-28 \mathrm{kcal} \\
\mathrm{Au}(\mathrm{OH})_{3}+4 \mathrm{HBr} \longrightarrow \mathrm{HAuBr}_{4}+3 \mathrm{H}_{2} \mathrm{O}, & \Delta \mathrm{H}=-36.8 \mathrm{kcal}
\end{array}
\]
\( \mathrm{P} \)
In an experiment, there was an absorption of \( 0.44 \mathrm{kcal} \) when one mole of \( \mathrm{HAuBr}_{4} \) was mixed with 4
W moles of \( \mathrm{HCl} \). Then, the fraction of \( \mathrm{HAuBr}_{4} \) converted into \( \mathrm{HAuCl}_{4} \) (percentage conversion)
(A) \( 5 \% \)
(B) \( 6 \% \)
(C) \( 7 \% \)
(D) \( 8 \% \)
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