The Fluorocarbon C₂CL₃F₃has a Normal Boiling Point of 47 $\mathrm { C } _ { 2 } \mathrm { Cl } _ { 3 } \mathrm {~F} _ { 3 } ( l )$

question 13

Multiple Choice

The fluorocarbon C₂CL₃F₃has a normal boiling point of 47.6 °C.The specific heats of $\mathrm { C } _ { 2 } \mathrm { Cl } _ { 3 } \mathrm {~F} _ { 3 } ( l )$ and $\mathrm { C } _ { 2 }$ $\mathrm { Cl } _ { 3 }$ $\mathrm { F } _ { 3 }$ (g) are 0.91 J g^-1 °C^-1 and 0.67 J g^-1 °C^-1,respectively.The heat of vaporization of the compound is 27.49 kJ mol^-1.The heat required to convert 50.0 g of the compound from the liquid at $4.0 ^ { \circ } \mathrm { C }$ to the gas at 70.0 °C is ________ kJ.

• A)10.07
• B)2742
• C)30.22
• D)9.86
• E)4.60

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