Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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In order to calculate the total heat flow for a process in the calorimeter, you will need to calculate the heat capacity for the calorimeter Ccal by a calibration technique involving mixing hot and room-temperature or cold water in the instrument. Consider two 50.0 mL volumes of water, one at 20.0 °C and the other at 100.0 °C.
(a) What are the masses of the volumes of water?
(b) The temperature of the combined solutions when mixed in a calorimeter is measured to be 52.4 °C. What are the temperature changes for each of the volumes of water?
(c) What are the heat flows for each volume of water, qcold and qhot, in Joules?
(d) What is the heat flow for the calorimeter itself, qcal in Joules? (e) Assuming the calorimeter underwent the same temperature change as the volume of cold water, what is the value of the calorimeter constant Ccal for this calorimeter?
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