Since the cup itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter and the value determined is called the calorimeter constant. One way to do this is to use a common metal of known heat capacity. In the laboratory a student heats 90.57 grams of iron to 97.76 °C and then drops it into a cup containing 83.51 grams of water at 24.27 °C. She measures the final temperature to be 31.82 °C. Using the accepted value for the specific heat of iron (See the References tool), calculate the calorimeter constant. Calorimeter Constant = J/°C

Since the cup itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter and the value determined is called the calorimeter constant. One way to do this is to use a common metal of known heat capacity. In the laboratory a student heats 90.57 grams of iron to 97.76 °C and then drops it into a cup containing 83.51 grams of water at 24.27 °C. She measures the final temperature to be 31.82 °C. Using the accepted value for the specific heat of iron (See the References tool), calculate the calorimeter constant. Calorimeter Constant = J/°C

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 5.105QE

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