A rod, with sides insulated to prevent heat loss, has one end immersed in boiling water 100°C and the other end in a water-ice mixture at 0.00°C. The rod has uniform cross-sectional area of
and length of
Under steady state conditions, the heat conducted by the rod melts the ice at a rate of
every 34 seconds. What is the thermal conductivity of the rod? (The heat of fusion of water is 
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