Answer
$-1.48\times10^{3}\,J/K$
Work Step by Step
$\Delta S_{surr}=\frac{-\Delta H_{sys}}{T}=\frac{-\Delta H^{\circ}_{rxn}}{T}=\frac{-(114\,kJ)}{77\,K}$
$=\frac{-114\times10^{3}\,J}{77\,K}=-1.48\times10^{3}\,J/K$
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