The vapor pressure of phosphoryl chloride difluroride, Ask an Expert

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The vapor pressure of phosphoryl chloride difluroride (OPCl2F2) has been measured as a function of temperature:

Temperature (K) Vapor Pressure (Torr)
190 3.2
228 68
250 240
273 672

a. Plot ln P against T-1.

b. From the plot (or a linear equation derived from it) in part a, determine the standard enthalpy of vaporization of OPCl2F2

c. Determine the standard entropy of vaporization of OPCl2F2

d. Determine the normal boiling point of OPCl2F2.

e. If the pressure of a sample of OPCl2F2 is reduced to 15 Torr, at what temperature will the sample boil?

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Category:- Chemistry
Reference No.:- M91072600

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