21. IE •• In a calorimetry experiment, 0.50 kg of a metal at 100 °C is added to 0.50 kg of water at 20 °C in an aluminum calorimeter cup. The cup has a mass of 0.250 kg.

(a) If some water splashed out of the cup when the metal was added, the measured specific heat will appear to be (1) higher, (2) the same, (3) lower than the value calculated for the case in which the water does not splash out. Why?

(b) If the final temperature of the mixture is 25 °C, and no water splashed out, what is the specific heat of the metal?