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# Class Note for CHEM 112 at UMass(27)

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COURSE
PROF.
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TYPE
Class Notes
PAGES
2
WORDS
KARMA
25 ?

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This 2 page Class Notes was uploaded by an elite notetaker on Friday February 6, 2015. The Class Notes belongs to a course at University of Massachusetts taught by a professor in Fall. Since its upload, it has received 18 views.

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Date Created: 02/06/15
Chapter 13 Lecture Worksheet 4 NMP NBP Triple Point Critical Point N2 2100 00 196 OC 2101OC 0127 atm 147 Oc 33 atm C02 NSP 7850C 56 Oc 5 atm 31 00 73 atm NH3 778 oc 33 00 779 00 0006 atm 132 00 112 atm H20 0 00 100 00 001 00 0006 atm 347 Oc 218 atm 12 113 0C 1850C 113 0C 013 atm 512 Oc 116 atm 12s is placed in an evacuated 50 mL cylinder at room temperature At equilibrium 50 grams of solid is present If 5 grams of the solid is removed and the system is allowed to reestablish equilibrium 1 The pressure in the cylinder will be higher 2 The pressure in the cylinder will be lower 3 The pressure in the cylinder will remain the same If the volume of the cylinder is increased to 60 mL and the system is allowed to reestablish equilibrium 1 The pressure in the cylinder will be higher 2 The pressure in the cylinder will be lower 3 The pressure in the cylinder will remain the same Vapor pressure depends only upon temperature Sketch a phase diagram for N2 PRS Question 1 Can you liquify N2 at room temperature Explain 1 Yes 2 No Room T is above the critical point of N2 Sketch a phase diagram for C02 PRS Question 2 Can you make liquid C02 at room temperature Explain 1 Yes 2 No Room T is between the triple point and the critical point PRS Question 3 Does C02 have a normal boiling point Explain 1 Yes 2 No 100 atmosphere is below the triple point It has instead a normal sublimation point From Exam 1 Last Year Sketch an approximate phase diagram for iodine NOTDRAWN TO SCALE SEE ENFORMATION PAGE Label CLEARLY all of the important lines curves regions and points You MAY USE ABBREVIATIONS HERE See page 4 from answer key for last year Can I be liqui ed at room temperature 1 YES 2 NO circle one This is because CHOOSE ONE BEST ANSWER 1 Room temperature is above the critical point of 12 2 Room temperature is above the triple point of 12 3 Room temperature is between the critical point and the triple point of 12 4 Room temperature is below the critical point of 12 5 Room temperature is below the triple point of 12

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