c. A group of physics students performed an experiment about specific heat of liquids. A liquid of unknown specific heat at a temperature of 20°C was mixed with water at 80°C in a well-insulated container. The final temperature was measured to be 50°C and the combined mass of the two liquids was measured to be 240 g. In a second trial with both liquids at the same initial temperature, 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 52°C. What is the value of the specific heat of the liquid does the group determined?

c. A group of physics students performed an experiment about specific heat of liquids. A liquid of unknown specific heat at a temperature of 20°C was mixed with water at 80°C in a well-insulated container. The final temperature was measured to be 50°C and the combined mass of the two liquids was measured to be 240 g. In a second trial with both liquids at the same initial temperature, 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 52°C. What is the value of the specific heat of the liquid does the group determined?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter21: Heat And The First Law Of Thermodynamics

Section: Chapter Questions

Problem 20PQ: From Table 21.1, the specific heat of milk is 3.93 103 J/ (kg K). and the specific heat of water...

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