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A container of negligible mass contains 0.50 kgm of liquid water at a temperature of
75°C. Lead, at a temperature of 365°C is poured in the container. Assuming that heat is
not lost to its surroundings, how much liquid water (if any) remains in the container upon
reaching thermal equilibrium if the amount of lead that is poured in it is 1.250 kgm?
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