Question

For The Reaction at 298 K 2 No O The values of aH ndas are -SB03 J 16.4 5/K respetivdy what thevalue ot AG 298k Assuning that H d as de aet depgond on Tenpersture, at what temperature i AGo? T, AG negefive above or balouth tertne (2 As o is cooled at 1atn, it freezes at 545 K t fen Sold . At a lower tenperture, Solid I cearanges to Solid diffet crystal struture. Tharnal meaurenents Show hat AH fu e r-II hase tanii7431nd and As for th same transtion is -17.0 3/k Mol. which has a eguili brivn A+ hat tenperature are sude I i Consider reacthon 2So o ) 250, Carried out at 2s°C and 1at Caleulete AH, AS AG sn te follwing Dt (5kmol) Substance 297 248 So, 31 257 Htas En SMSreatats

Answer 1

Ques i Solution 2NO 219) 298 K 58. 03 KJ at -6 /K AS at 298 K we Know that AH TAS Pot AH Va Lues Cind 2981766) C 3 -58 .G3 X AG +52626 :-5803. 298 K J) AG =-5403 2 to Zela be eguaL to For SH TAS 5803 Xe-T) (-1766) 328.59 K 58030 176.6

AC WLL dembelatihe, 328 59 K So Zelo to be egual AG negatine Seen have And as we be hegadine wilL 298 K below 328 59 K temberature

Question 3, Solution 2S03 c9) 2 So 2 (9) 25 c tembeaa tiee Caggied out AH CK/mo Subslance 248 S (a) - 29 7. 25 7 396 205 29) ZaHXnp FCPAnduct) AHO - ax AHO 2x (-39%) (S2) PAroduct Reac lants -198 KJ フ92 +594 AHO AH mal

ZnpxS (duds) 2x248- ]X205 2 X248 2 X 25 7 AS" -I8.7 K 7ous Now TAS SH Te 298 K AG -1 3 198 X o J 18: 7J 42274