1.

The vapor pressure of a compound in a liquid phase is given by ln p* = 21 – 2800/T, and in solid phase it is given by ln p* = 28 – 3500/T, what is the sublimation temperature of the compound?(a) 100 K(b) 120 K(c) 150 K(d) 200 KI got this question in final exam.My question comes from Modeling and Predicting Vapor Pressure in division Real Gases: Equations of State, Single Component Two Phase Systems, Saturation & Condensation of Basic Chemical Engineering

Answer»

The correct option is (a) 100 K

For EXPLANATION: At sublimation point pressure and TEMPERATURE of both the PHASES will be same, => 21 – 2800/T = 28 – 3500/T, => T = 100 K.



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