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userdata-paziras-Chem101-Chap_11A

1470c 10 chemistry101 chapter11

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Unformatted text preview: ) B pc= 218 C (Critical Point LIQUID SOLID 1.00 p3= 0.0060 GAS A (Triple Point) SOLID GAS D 0 t ( C) GAS t3 = 0.010 C 374 0 C 00 C A = Triple Po int for Water; p3 = 0.0060 atm (4.58 mm Hg) t3 = 0.01 0 C (273. 16 K) = the p and the t at which SOLID, LIQUID, and GAS coexist C = Crit ical Po int for Water pc= crit ical pressure = 218 atm pressure above which the substance can exist only as a liquid at the crit ical temperature(374 0 C) tc= critical temperature = 374 0 C temperature above which the substance can exist only as a gas · Hot steam can be turned into liquid water by applying high pressure, as lo ng as the temperature < 374 0 C · Example: Crit ical temperature of Nitrogen gas = - 147 0 C To liquefy N2 gas, pressure must be applied at a t < ­147 0 C 10 Chemistry 101 Chapter 11 PHASE DIAGRAM FOR CARBON DIOXIDE p(atm) B pc= 73 C (Critical Point LIQUID SOLID GAS p3= 5.1 A (Triple Point) SOLID GAS 1.00 GAS SOLID GAS t3 = - 57 0 C D t c = 31 0 C - 78 0 C AB = M.P. curve at different pressures; Along AB : solid liquid · AB leans slight ly to the right (general for all liquids) Meaning: CO2 can exist as a liquid...
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