1.

A piece of unknown metal with mass 68.6 g is heated to an initial temperature of 100 °C and dropped into 8.4 g of water (with an initial temperature of 20 °C) in a calorimeter. The final temperature of the system is 52.1°C. The specific heat of water is 4.184 J/g*⁰C. What is the specific heat of the metal?

Answer» ONG>Step-by-step explanation:

192×S×(100−21.5)

=128×394×(21.5−8.4)

+240×4200×(21.5−8.4)

⟹ S = 916

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