An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water are in thermal equilibrium at 10°C. Two metallic blocks are placed into the water. One is a 51.3-g piece of aluminum at 80°C. The other has a mass of 278 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20°C. (a) Determine the specific heat of the unknown sample. 369.7 x J/kg. °C (b) Using the data in this table, can you make a positive identification of the unknown material? Can you identify a possible material? The unknown material might be --Select--- O (c) Explain your answers for part (b).

An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water are in thermal equilibrium at 10°C. Two metallic blocks are placed into the water. One is a 51.3-g piece of aluminum at 80°C. The other has a mass of 278 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20°C. (a) Determine the specific heat of the unknown sample. 369.7 x J/kg. °C (b) Using the data in this table, can you make a positive identification of the unknown material? Can you identify a possible material? The unknown material might be --Select--- O (c) Explain your answers for part (b).

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 68PQ

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