Po ctt d Mt odt dl bbo 0 Pof. Polo l Pof. Mo zz czo S cod u ct d to blt dot lugo x, co o tcol =, Å. Utlzzdo l todo dl lg fot (tgt bdg) ltto c, co u b coot d u obtl d to x uo d to : ) - c l o lct dll g dll du bd utlzzdo l lzo: R R do =,,0 V,,0 V gl tgl d oozo lgoo =, V =,0 V - dg ctct () ll I zo d llou otdo l cl dll g V d l t è olt o tllco b) - to l g c uò u foto obto ddo luogo u tzo tbd - to, ccu dll du bd, l ffcc dgl ltto = 0 c) Suodo o l t tdol, to: - l dtà d ltto, 800 K, l fodo dll bd d g ù lt - l coducbltà lttc dll ct 800 K, udo c l to do f du ut lo to ltto lcu, co =, x -. d) Suodo c,, l tl c c u coctzo d ltto lb,x c - = 0, d l g d cu l uto b) cbo =0 d, tult, qul u. tà d otto tc: ( ) / / G ( oo ttt l ffcc dgl ltto dll lcu d G è l g dll g) g d (l ffcc dgl ltto uò uo cott tutt l bd):
czo S cod c d u tllo, d M = 0.7 g, oolt (Z=) t tuttu ctll cubc coo ctto co b ootoc. L ffcc dgl ltto, oto, è =, 0. I tbll oo ott lo dll cctà tc olu cott dl co,, ut d ttu (K) - - 0 00 00 (g c - K - ) 8, 8, 87,,9 x 7x 80x,9x 7 ) S clcol l coctzo d otto dl tllo, l ttu d by,, l loctà dl uoo, uot oto, dl tl. ) S dt l to tcol l M t, utà toc, dgl to dl tllo. ) S ddu l bolo cco dl tllo (l tol dgl lt è coultbl ul). Sguoo l foul dll cctà tc tcol utà d olu, dl tto d od d by, dll cctà tc lttoc utà d olu, dll g d. K / Z / ott ftto d coo lt du cz =,8x - g K -,0x -7 g =,0x - J 0 =0.9x -7 g =, -9 u... =, x - g V =. - g = K = 80 c -
czo -Soluzo ) Pocé <0, = =-, V = -,0 - g océ >0, = +,0 V =, - g () co() co() V () co() co() V d 9 V V d - V Pocé gl to oo blt o oozo f l du bd l t è olt (bd, bd uot) b) L g d foto l czo dll co ltto-buc d V 9 V. L ffcc è: A ( ) A 0, 0, ( ) ( ) (,0 (,0, 7 ) (, 7 ) (, 8 8 ) ) co( ) co( ) c) Pocé, l dtà d ltto 800 K è,,8 8 8 g g co( ) co( ) ( ) / / G,8 800 7 (,0 ), 8,8 8 x 0 /0,0 7, 7,, c - q = =, 9,,,,8 - -
d) I z d ltto c dout, o, dogggo co doo, u codutto dg, o u tllo, l qul lgoo l foul d tll. A =0, l g dgl ltto bd d coduzo qull d,7 7,, 7 (.0 ) 8, g,0 V, Ptto l tzo d g dt qull t l o dll bd d lz l o tto uoto bd d coduzo, V o l o dll bd d coduzo. l tzo co dtt uo, co czo o dtuzo ult d u foo, V (l g dl foo tct f 0 V, cod dl tl). L tzo d g 9 V. P coltzz, olo cod olo tzo dtt, o tcl llo zo coco, o qut l dod, doo o l g dgl ltto dll lcu, ( ), ll g dll g. Poc dd olo dll dt d otto, lo to lo lcu d ltto. No co L g, c dd t dll, cu l g dll lcu,8 ( ) 0, 8V, cu l g tzo dtt, o tt d foo,,8 V, qull 9 V. czo - Soluzo ) L cct tc ut c - d tl ugul ll cct tc ut d olu dt dll foul llgt l tto. I lo ut dco ct c: - fo = K l cct tc l co d tto dt l ggo t dl olo cotbuto lttoco - K cc cc co l ttu l cubo, cu dt ltt, o olo, dl olo cotbuto tcol - 00 K u dto cc cott uò qud u l lt clco dll lgg d ulog Ptt. Ptto, dll foul dt d lo dll cct tc ut ll u b, ott 8g c K Z Z / / Z / 8,8,0 7, 0.9 7 / 8,8,0 0 8, 7 c, 7, c
I lo dll cct tc totl ut f 0 K, otttt dl cotbuto lttoco l co l ttu, ttoo d c l cotbuto tcol l coffct A c oltlc, cu l ttu d by l uc cogt A (K) - - 0 (g c - K - ) 0 0,0,, x,8x d cu c qu : A /,, A, g c K,8 / 00K Iolt, dll lzo ld l odllo d ud u loct dl uoo oto, ott /,0,8 7 00, /,7 c ) I u tcolo cubco coo ctto, d to tcol b ootoc, o to d M cll ut. Poc gl to oo oolt, l dt d ltto d lz qull dgl to, cu /, /, 8 c 0. M V M t M t M t 0. 0.,, g,9 u.. ) tllo ootoco,,9 u.. lto