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The Enthalpy of Vaporization of Tetrachloromethane, CCl4, Is 30

Question 20

Multiple Choice

The enthalpy of vaporization of tetrachloromethane, CCl4, is 30.5 kJ mol-1 at its normal boiling temperature of 350 K. Estimate the enthalpy of vaporization at 298 K, given that the molar constant pressure heat capacities of liquid and gaseous tetrachloromethane are 83.5 and 135 J K-1 mol-1.


A) 27.8 kJ mol-1
B) 33.2 kJ mol-1
C) 30.5 kJ mol-1
D) 2.7 kJ mol-1

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