For the reaction $2$A $->$ B in the liquid phase, it is known that it is elemental and that at $25\mathrm{.}4$ oC it has a rate constant of $0\mathrm{.}6$ mol$-1$dm$3$hr$-1$ and an activation energy of $8\mathrm{.}2$ mol$-1$caloK. We will work in a constant volume BATCH reactor at $52\mathrm{.}1$ oC for $0\mathrm{.}9$ hours. Calculate the final concentration of A $($in moldm$-3)$ if we have a feed of A in solution with a concentration of $5\mathrm{.}5$ moldm$-3$

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