An unknown element of mass 0.250 kg, initially at 95.0C,
Chapter 11, Problem 11.26(choose chapter or problem)
An unknown element of mass 0.250 kg, initially at 95.0C, is dropped into 0.400 kg of water at 20.0C contained in an insulated cup of negligible mass and specific heat. If the equilibrium temperature is 36.0C, which of the following is the most likely identity of the substance? (a) aluminum (b) beryllium (c) cadmium (d) iron (e) gold
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