Question

Use the data to sketch the phase diagram for xenon (Xe) and then answer the questions that follow.

Normal boiling point: 165 K

Normal melting point: 161 K

Triple point: 152 K, .37 atm

Critical temperature: 290 K

Critical pressure: 57 atm

A. What phase is xenon at atmospheric conditions?

B. Is liquid xenon more or less dense than solid xenon? Use the diagram to justify your answer.

C. What is the appropriate maximum pressure of gas that can exist at -155 degrees celcuis?

D. If a Xenon sample is heated at .2 atm, at what temperature will xenon melt? Explain.

E. Can xenon be liquid at room temperature if enough pressure is applied? Explain.

F. What is the minimum temperature at which the liquid phase can exist?

All part of one question, multiple steps

Answer 1

nase diagram of Xenon (Xe) Normal melting point = 1616 Normal boiling point = 165K Triple point = 152 k , 37 atm Gritical Temperature = 290k critical pressure - 57 atm What phase is xenon at atmospheric conditions ! Gras phase of Xenon at atmospheric condition. Liquid Xenon is less dense than solid Xenon Because, In liquid State, Xenon atoms have enough energy to over weak attraction forces between atoms and them far enough to be able to move around little mostly vibrating and rotating and a translational moreman. In solid state, enough has been removed from the atoms (cooling) they can no longer break free from attractions between the atoms. c. The appropriate maximum pressure of gas that can exist at -155". D. It's compresed from 0.5 atm to 2 Satm. xenon sample is heated at 2atm. What is the temperature will Xenon melt:

PV = nRT ' - Pea Pi = 2 atm P2 = 57 atm T, = 16 lk Bu: % To = 57 x161 = 4588 K Cos) = 4314c temperature if pressure E. xenon can be liquid at room is applied : yes, 57 atm. F. The minimum temperature at which the liquid phase can exist! => The Liquid - vapour curve terminates oct a temperature of 374°C and a pressure of 218 atm.