Question
Which of the following is the most electropositive element
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$I$ || $II$ || $III$ || $IV$
$C_{(graphite)} + CO_{2(g)} \rightarrow 2CO _{(g)}$
are $170\, kJ$ and $170\, J K^{-1},$ respectively. This reaction will be spontaneous at ............ $\mathrm{K}$