Question

A solid of mass 0.15 kg and at 100°C is placed in 0.25 kg of water, contained in a copper calorimeter of mass 0.12 kg at 10°C. If the final temperature of the mixture is 20°C, calculate the sp. heat capacity of the solid.

Given:
$\text{H.C of water = \: }4200 \: J{kg}^{ - 1}{k}^{ - 1} \\ \text{SHC of copper = \: } 400 \: J{kg}^{ - 1}{k}^{ - 1}$
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Answer 1

Answer:

C= 10980/12 = 915JKg-1K-1