Tin bronze has a composition of 92 wt% Cu and 8 wt% Sn, and consists of two phases at room temperature: an a phase, which is copper containing a very small amount of tin in solid solution, and an e phase, which consists of approximately 37 wt% Sn. Compute the room temperature conductivity of this alloy given the following data:

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Phase Density (g/cm) Electrical Resistivity (2-m) 1.88 x 8.94 10-8 5.32 x 10-7 8.25