Question

A liquid of unknown specific heat at a temperature of 20oC was mixed with water at 80oC in a well-insulated container. The final temperature was measured to be 50oC, and the combined mass of the two liquids was measured to be 240g. In a second experiment with both liquids at the same initial temperatures, 20 g less of the liquid of unknown specific heat was poured into the same amount of water as before. This time the equilibrium temperature was found to be 52oC. Determine the specific heat of the liquid. The specific heat of water is 4187 J/KgoC or 1 kcal/kgoC.

Answer 1

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