Chlorofluorocarbons are commonly used as Freon in refrigerators and air conditioners. Cooling the average dorm room from 35°C to 22°C requires the air conditioner to convert ~2700 g of C2Cl3F3 from a liquid at 24.7 °C to a gas at 87.0 °C. How much energy in kJ is absorbed by the chlorofluorocarbon when cooling this room? The chlorofluorocarbon C2Cl3F3 has a normal boiling point of 47.6 °C. The specific heat of the liquid is 0.91 J/g⋅K. The specific heat of the gas is 0.67 J/g⋅K. The heat of vaporization is 27.49 kJ/mol.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Chlorofluorocarbons are commonly used as Freon in refrigerators and air conditioners. Cooling the average dorm room from 35°C to 22°C requires the air conditioner to convert ~2700 g of C2Cl3F3 from a liquid at 24.7 °C to a gas at 87.0 °C.  How much energy in kJ is absorbed by the chlorofluorocarbon when cooling this room?  The chlorofluorocarbon C2Cl3F3 has a normal boiling point of 47.6 °C. The specific heat of the liquid is 0.91 J/g⋅K.  The specific heat of the gas is  0.67 J/g⋅K.  The heat of vaporization is 27.49 kJ/mol.

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