7#,rX jjjj l1l1l1l1lA lKlK<lxj:l mn*o gjnm7nnr5nnnnnnCalculate the heat input needed to warm 18 g of ice from -20 to 120oC . I. Draw a picture  II. Collect the thermodynamic data for each step (heat capacitions and heats of fusion and vaporization): Cp (s) = 2.06 J/mol oC DHfus = 6.01 kJ/mol Cp (l) = 75.3 J/mol oC DHvap = 40.8 kJ/mol Cp (g) = 0.481 J/mol oC III. Calculate q for each step: 1. q1 = 1 mol. * F(2.06 J,mol oC) * {0 - (-20)} = 41.2 J 2. q2 = n*DHfus = 1mol. * 6010 J/mol = 6010 J ( 3. q3 = 1 mol. * F(75.3 J,mol oC) * {100- 0} = 7530 J 5. q5 = 1 mol. * F(0.481 J,mol oC) * {120- 100} = 9.62 J q(fusion) = moles DHfus q(vaporization) = moles DHvap DHfus = 6.01 kJ/mol DHvap = 40.8 kJ/mol Cp (s) = 2.06 J/mol oC Cp (l) = 75.3 J/mol oC Cp (g) = 0.481 J/mol oC uvhXd WORD 4- [S!84+Y!8ETZ!X ,Times .+ >ICE +WATER !(7Steama7Q0"D[?aNDh^0"EF (m -20 ---> 0 +0 -------->100 +K100 ---------->120 ($q1 +q3 +Fq5 (Wkq2 + q4 (D Vaporization (=aMelting:37.18.6637.1742 note: is the heat needed to melt ice!) 44vap4080040800 note: vap is the heat needed to boil water!) 8.66173 IV. Add the heat (q) for each step: qtotal = 742 + 6010 + 7530 + 40800 + 173 = 5.5x104 Jޭ cache34986-2TEXTMOSS!tivi}ޭ|CD]^_bc  `amo{|"$12Obcdirsw{ @ *P0P  P @ SHI\]_  89YZ OPhi $ $$$$ $$(  dVFd WORD  5!ҡ !,Times .+_t (q"U"/#FU##> 5! !({t +lcq"U","2/U"`W# V. Plot the data:f Phase Change Whitney King Whitney King!&),5EHNPQRTU hRhSh]j @h` @ @ @  XRXD X4 d WORD d WORD   ,Times .r$U}vf2+ "1=!8";";"Z;";"="D"J"Q"W"^"d"j"q"w"~"""""""""""""""""""8"8"Z8"8"="W"q""""" == ="=#!!)#! +-0(20000(^40000(60000+-20)0)20)40)60)80)100)120  (q (J)  q  ?   +p~Temperature (oC)1E!8"B"B"B"B"B"B"B"B"B"B"B"B"B"B"{B"sB"mB"fB"^B"WB"QB"IB"BB"<B"5B"-B"&B" B"B"E""""@"@"@"@"m@"Q@"5@"@"E""" EE E"E#!5o#z#!(/-20(80(220(240(r260(U280(9,100(,120+0)020000)<40000)<600002 (Temperature (oC)  ffM, 8    `       `0 ?  0+q (J)'%!PS-Adobe-2.0 EPSF-1.2 %%Creator: DeltaGraph Professional 3.0 %%Title: (Untitled #1:Chart View) %%Creation Date: (2/16/95) (11:0 PM) %%BoundingBox: 19 222 639 487 %%DocumentProcSets: DeltaGraph 3.0 %%DocumentSuppliedProcSets: DeltaGraph 3.0 %%DocumentProcessColors: Cyan Magenta Yellow Black %%DocumentFonts: Times-Roman %%EndComments %%BeginProcSet: DeltaGraphPro /DeltaGraphPro 200 dict def DeltaGraphPro begin /currentpacking where{pop true setpacking}if /Version 3.0 def /Revision 13 def /PSL2 /languagelevel where{pop languagelevel}{1}ifelse 2 ge def /bdef{bind def}bind def /ldef{load def}bdef /xdef{exch def}bdef /SYM -987654321.1 def /setcmykcolor where dup not{/setcmykcolor{1 sub 4 1 roll 3 {3 index add neg dup 0 lt{pop 0}if 3 1 roll}repeat setrgbcolor pop}def}if{pop}if /colorimage where dup not{/colorimage{}def}if{pop}if /FillGray 0 def /FillCyan 0 def /FillMagenta 0 def /FillYellow 0 def /FillBlack 1 def /FillMac 8 string def /UseMacFill false def /StrokeGray 0 def /StrokeCyan 1 def /StrokeMagenta 1 def /StrokeYellow 1 def /StrokeBlack 1 def /StrokeMac 8 string def /UseMacStroke false def /savestate{FillGray FillCyan FillMagenta FillYellow FillBlack FillMac UseMacFill StrokeGray StrokeCyan StrokeMagenta StrokeYellow StrokeBlack StrokeMac UseMacStroke}bdef /restorestate{/UseMacStroke xdef /StrokeMac xdef /StrokeBlack xdef /StrokeYellow xdef /StrokeMagenta xdef /StrokeCyan xdef /StrokeGray xdef /UseMacFill xdef /FillMac xdef /FillBlack xdef 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