Heat of vaporization can be solved using the Clasius-Clapeyron equation where:
Where P is pressure (any unit will do as long as P1 and P2 have the same unit) and T is temperature in K. ΔHvap is heat of vaporization in J/mol while R is gas constant (8.314 J/mol K)
Plugging in the values of P and T from the table provided (I'll be using 255 K and 265 K but any will do):
The vapor pressure of carbon tetrachloride is measured as a function of temperature and the results are tabulated and shown in the table below. Determine the heat of vaporization of carbon tetrachloride from the results.
|Temperature (K)||Pressure (torr)|
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