\textbf{228 –} If the equilibrium reaction: $K = 2\,\mathrm{mol\cdot L^{-1}}$, $A(g) \rightleftharpoons 2B(g)$, starting with 1 molar concentration of substance $A$, at most what percentage of this reaction proceeds?
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(1) $50$ \hspace{1cm} (2) $52/5$ \hspace{1cm} (3) $60$ \hspace{1cm} (4) $62/5$
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\textbf{Chemistry \hfill 120-C \hfill Page 24}
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