Answer
$\Delta S_{net} = 0.69 J/K $
Work Step by Step
The net entropy of the system is
$\Delta S_{net} = \Delta S_{tungsten} + \Delta S_{silver} $
$\Delta S_{net} = (-1.689 J/K) + 2.379 J/K $
$\Delta S_{net} = 0.69 J/K $
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