Question: A steel casting weighing 2 kg has an initial temperature of 500oC; 40 kg of water initially at 25oC is contained in a perfectly insulated

A steel casting weighing 2 kg has an initial temperature of 500oC; 40 kg of water initially at 25oC is contained in a perfectly insulated steel tank weighing 5 kg. The casting is immersed in the water and the system is allowed to come to equilibrium. What is its final temperature? Ignore effects of expansion or contraction, and assume constant specific heats of 4.18 kJ kg-1 K-1 for water and 0.50 kJ kg-1 K-1 for steel.

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