When 80 g of lead is placed in 80 g of boiling water at 100 degrees Celsius, the lead will heat up significantly due to the water's higher heat capacity. Given the heat capacity values, the lead will reach a temperature close to 100 degrees Celsius after about 5 minutes, likely around 95 degrees Celsius. The heat transfer will favor the water, but the lead will still attain a high temperature due to the equal mass and the assumption of no heat loss. This scenario illustrates the efficiency of heat transfer between substances with differing heat capacities. Overall, the lead will achieve a temperature very close to that of the boiling water.