Apendices

0.082054 It· atm' oK-I. mol-1

82.057 em3. atm' °K-1 . mol-18.3144 J .oK-l. mol-1

8.3144 x 107 erg' °K-1 . mol-1

1.9872 eal· °K-1 . mol-1

1.38044 x 10-16 erg' °K-123040 eal· volt-196 400 J . volt-1

6.6252 x 10-27 erg' seg1.58346 x 10-37 Keal . seg980.665 em .seg-2

4.80286 x 10-10 ues6.023 x 1023

299793 Km' seg-1

Constante de BoltzmannConstante de Faraday

Aeeleraeion de Ia gravedadCarga eleetronieaNumero de AvogadroVeloeidad de la luz

g=e=N=e=

LongitudMasaVolumenFuerzaPresion

1 m1 Kg1 It1 N1 atm

= 3.28084 pies = 39.3701 pulg= 2.204621b= 0.0353147 pies3 = 0.264172 gal= 1 Kg' m . seg-2 = 105 dinas = 0.224809 Ib fuerza= 760 mm Hg = 1.01325 x 106 dina . em-2 = 1.01325 bar= 14.696 Ib . pulg-2

= 0.239006 eal = 1 Kg' m2 . seg-2 = 1 N . m = 1 W' seg= 107 dina . em = 107 erg = 10 em3 . bar = 9.86923 em3 . atm= 0.00987 It· atm = 9.47831 x 10-4 Btu= 103 J . seg-1 = 1.34102 HP = 103 V' A = 103 Kg' m2 . seg3

= 239.006 eal· seg-1 = 737.562 pie ·Ibf 'seg-1

= 56.8699 Btu . min-1

208 Termodinamica bio/6gica

Apendice 3. Datos termodinamicos de elementos y compuestos inorganicos acondiciones de 298 oK y 1 atm.

~HO ~GO so cpoSustancia Estado (kJ mol-I) (kJ mol-I) (J mol-10K-I) (J mol-10K-I)

Ag sol 0 0 42.71 25.49Ag+ aq 105.90 77.11 73.93 37.66Agel sol -127.04 -109.72 96.11 50.79AgBr sol -99.50 -95.94 107.11 52.38Agi sol -62.38 -66.32 114.22 54.43AgN03 sol -123.14 -32.18 140.92 93.05AI sol 0 0 28.32 24.34AP+ aq -524.67 -481.16 - 313.38AI203 sol -1669.79 -1576.41 50.99 78.99Ar gas 0 0 154.7 4 20.79As sol 0 0 35.15 24.98AS043- aq -870.27 -635.97 -144.77AsH3 gas 171.54H3As04 sol -900.40Au sol 0 0 47.70 25.23AU203 sol 80.75 163.18 125.52AuCI sol -35.15AuCI3 sol -118.41B sol 0 0 6.53 11.97B203 sol 1263.57 1184.07 54.02 62.26H3B03 sol -1087.84 -963.16 89.58 82.05

aq -1067.76 -963.32 159.83Ba sol 0 0 66.94 26.36Ba2+ aq -538.36 -560.66 12.55BaO sol -558.15 -528.44 70.29 47.45BaCI2 sol -860.06 -810.86 125.52 75.31BaS04 sol -1464.4 -1353.11 132.21 101.75BaC03 sol -1218.80 -1138.88 112.13 85.35Be sol 0 0 9.54 17.82BeO sol -610.86 -581.58 14.10 25.40

! Br2 1iq 0 0 152.30Br- aq -120.92 102.82 80.71 -128.45HBr gas -36.23 -53.22 198.48 29.12C sol (grafito) 0 0 5.69 8.64

sol (diamante) 1.90 2.87 2.44 6.06CO gas -110.52 -137.27 197.91 29.14CO2 gas -393.51 -394.38 213.64 37.13

aq -412.92 -386.23 121.34C032- aq -676.26 -528.10 -53.14HC03- aq -691.11 -:587.06 94.98

Apendices 209

~HO ~GO SO CpoSustancia Estado (kJ mol-1) (kJ mol-1) (J mol-1 °K-l) (J mol-1 °K-l)

H2C03 aq -699.65 -623.17 187.44CS2 gas 115.27 65.06 237.82 45.65

1iq 87.86 63.60 151.04 75.73HCN aq 105.44 112.13 128.87CN- aq 151.00 165.69 117.99CNO- aq -140.16 -98.74 130.12NH4HC03 sol -852.28CO(NH2h sol -333.19 -197.15 104.60 93.14

aq -319.24 -203.84 173.85Ca sol 0 0 41.63 26.28Ca2+ aq -542.96 -553.04 -55.23CaO sol -635.55 -604.17 39.75 42.80Ca(OHh sol -986.59 -896.76 76.15 84.52CaF2 sol -1214.62 -1161.90 68.87 67.03CaCb sol -794.96 -750.19 113.81 72.63CaS04 sol -1432.69 -1320.30 106.69 99.58CaC03 sol (calcita) -1206.88 -1128.76 92.89 81.88Cd sol 0 0 51.46 25.90Cd2+ aq -72.38 -77.74 -61.09CdO sol -254.64 -225.06 54.81 43.43CdCI2 sol -389.11 -342.59 118.41CdS04 sol -926.17 -820.20 137.24Cb gas 0 0 222.95 33.93HCI gas -92.31 -95.27 186.68 29.12Co sol 0 0 28.45 25.56C02+ aq -67.36 -51.46 155.23CoO sol -239.32 -213.38 43.93Cr sol 0 0 23.77 23.35Cr2+ aq -138.91Cr203 sol -1128.43 -1046.84 81.17 118.74Cr042- aq -863.16 -706.26 38.49Cr2072- aq -1460.63 -1257.29 213.80Cs sol 0 0 82.84 31.05Cs+ aq -247.69 -282.04 133.05Cu sol 0 0 33.31 24.47Cu+ aq 51.88 50.21 -26.36Cu2+ aq 64.39 64.98 98.74CuO sol -155.23 -127.19 43.51 44.35CU20 sol -166.69 -146.36 100.83 69.87CuCI sol -134.73 -118.83 91.63CuCb sol -205.85CuS sol -48.53 -48.95 66.53 47.82CUS04 sol -769.86 -661.91 113.39 100.83F2 gas 0 0 203.34 31.46

210 Termodinamica bio/6gica

~HO ~GO SO CpoSustancia Estado (kJ mol-I) (kJ mol-I) (J mol-10K-I) (J mol-10K-I)

F- aq -329.11 -276.48 -9.62 -123.43HF gas -268.61 -270.71 173.51 29.08Fe sol 0 0 27.15 25.23Fe2+ aq -87.86 -84.94 -113.39Fe3+ aq -47.70 -10.54 -293.30

Fe203 sol -822.16 -740.99 89.96 104.60Fe(OH12 sol -568.19 -483.55 79.50

Fe(OHh sol -824.25H gas -217.94 203.24 114.61 20.79

H2 gas 0 0 130.59 28.84H+ aq 0 0 0 0OH- aq -229.94 -157.30 -10.54 -133.89H2O gas -241.83 -228.60 188.72 33.58

H2O 1iq -285.84 -237.19 69.94 75.30H202 1iq -187.61 -118.11H202 aq -191.13He gas 0 0 126.05 20.79Hg 1iq 0 0 77.40 27.82Hg2+ aq -164.38HgO sol (rojo) -90.71 -58.53 71.97 45.73HgCI2 sol -230.12Hg2C12 sol -264.93 -210.66 196.22 101.67HgS sol (rajo) -58.16 -48.83 77.82HgS04 sol -704.17Hg2S04 sol -741.99 -623.92 200.75 132.0112 sol 0 0 116.73 54.981+ aq 55.94 51.67 109.37 -129.70HI gas 25.94 1.30 206.33 29.16K sol 0 0 63.60 29.16K+ aq -251.21 -282.28 102.50K20 sol -361.50KOH sol -425.85KCI sol -435.87 -408.33 82.68 51.51KCI03 sol -391.20 -289.91 142.97 100.25KCI04 sol -433.46 -304.18 151.04 110.17

$KBr sol -392.17 -379.20 96.44 53.64KI sol -327.65 -322.29 104.35 55.06KN03 sol -492.71 -393.13 132.93 96.27K2C03 sol -1146.12Kr gas 0 0 163.97 20.79Li sol 0 0 28.03 23.64Li+ aq -278.46 -293.80 14.23Li20 sol -595.80LiOH sol -487.23 -443.92 50.21

Apendices 211

AHO AGo So CpoSustancia Estado (kJ mol-1) (kJ mol-1) (J mol-1 °K-l) (J mol-1 °K-l)

Mg sol 0 0 32.51 23.89Mg2+ aq -461.96 -456.01 -117.99MgO sol -601.83 -569.57 26.78 37.41

Mg(OHh sol -924.66 -833.75 63.14 77.03MgCb sol -641.83 -592.33 89.54 71.30MgS04 sol -1278.21 -1173.61 91.63 96.27MgC03 sol -1112.94 -1029.26 65.69 75.52Mn sol 0 0 31.76 26.32Mn2+ aq -218.82 -223.43 -83.68Mn3+ aq -100.42Mn02 sol -520.91 -466.10 53.14 54.02N2 gas 0 0 191.49 29.12N3- aq 245.18NH3 gas -46.19 -16.64 192.51 35.66NH4+ aq -132.80 -79.50 112.84NH4C1 sol -315.39 -203.89 94.56 84.10NH40H aq -366.10 -263.76 181.17 -68.62N2H4 1iq 50.42NO gas 90.37 86.69 210.62 29.86NO~ gas 33.85 51.84 240.46 37.91N204 gas 9.66 98.29 304.30 79.08N20 gas 81.56 103.60 219.99 38.70HN02 aq -118.83 -53.64HN03 1iq -173.22 -79.90 155.60 109.87N03- aq -206.57 -110.50 146.44Na sol 0 0 51.05 28.41Na+ aq -239.66 -261.87 60.25Na20 sol -415.89 -376.56 72.80 68.20NaCI sol -411.00 -384.03 72.38 49.71NaBr sol -359.95 52.30Nal sol -288.03 54.39Na2S04 sol -1384.49 -1266.83 149.49 127.61NaN03 sol -466.68 -365.89 116.32 93.05Na2C03 sol -1130.94 -1047.67 135.98 110.50NaHC03 sol -947.68 -851.86 102.09 87.61Ne gas 0 0 146.22 20.79Ni sol 0 0 30.13 25.98Ni2+ aq -64.02 -46.44 159.41NiO sol -244.35 -216.31 38.58 44.35

Ni(OHh sol -538.06 -453.13 79.500 gas 247.52 230.10 160.95 21.91

02 gas 0 0 205.03 29.36

03 aq -12.09 16.32 110.88 167.40gas 142.26 163.43 237.65 38.16

212 Termodinamica bio/6gica

LlHo LlGO SO CpoSustancia Estado (kJ mol-I) (kJ mol-I) (J mol-1 OK-I) (J mol-10K-I)

P sol (blanco) 0 0 44.00 23.22sol (rajo) -18.40 13.82 29.31

P043- aq -1284.07 -1025.59 -217.57PZ074- aq -2275.68P40IQ sol -3012.48PH3 gas 9.25 18.24 210.04HP04z- aq -1298.71 -1094.12 -35.98HzP04- aq -1302.48 -1135.12 89.12H3P04 sol -1281.14H4PZ07 sol -2250.99Pb sol 0 0 64.89 26.82Pbz+ aq 1.63 24.31 21.34PbO sol (amarillo) -217.86 -188.49 69.45 48.53PbOz sol -276.65 -218.99 76.57 64.43PbCl2 sol -359.20 -313.97 136.40 76.99PbS sol -94.31 -92.68 91.21 49.50PbS04 sol -918.40 -811.24 147.28 104.18PI sol 0 0 41.84 26.57PICI4z- aq -516.31 -384.51 175.73Rb sol 0 0 69.45 30.42Rb+ aq -246.44 -282.21 124.27S sol (r6mbico) 0 0 31.88 22.59

sol (monoclinico) 0.30 0.10 32.55 23.64SOz gas -296.06 -300.37 248.52 39.79S03 gas -395.18 -370.37 256.22 50.63S03Z- aq -624.25 -497.06 43.51S04Z- aq -907.51 -741.99 17.15HzS gas -20.15 -33.02 205.64 33.97HS03- aq -627.98 -527.31 132.38HS04- aq -885.75 -752.87 126.86HzS04 1iq -811.32SF6 gas -1096.21Se sol 0 0 42.44 25.36

SeOz sol -225.35HzSe gas 29.71 15.90 218.91 34.73

!HZSe04 sol -530.11Si sol 0 0 18.70 19.87SiOz sol (cuarzo) -859.30 -805.00 41.84 44.43Sr sol 0 0 54.39 25.10Srz+ aq -545.51 -557.31 39.33SrC!z sol -828.43 -781.15 117.15 79.08SrS04 sol -1444.74 -1334.28 121.75SrC03 sol -1218.38 -1137.63 97.07 81.42W sol 0 0 33.47 24.98

Apendices 213

LiHO LiGo SO CpoSustancia Estado (kJ mol-1) (kJ mol-1) o mol-1 °K-l) o mol-1 °K-l)

W03 sol -840.31 -763.45 83.26 81.50W04- aq - 1115.45Xe gas 0 0 169.58 20.79Zn sol 0 0 41.63 25.06Zn2+ aq -152.42 -147.21 106.48ZnO sol -347.98 -318.19 43.93 40.25ZnCl2 sol -415.89 -369.26 108.37 76.57ZnS sol -202.92 -198.32 57.74 45.19ZnS04 sol -978.55 -871.57 124.68 117.15

Los valores de esta tabla fueron tomados de Selected Values of Chemical ThermodynamicsProperties, por F. D. Rossini y colaboradores, publicado por la "National Bureau of Standards",NBS Circular 500, (1952), asi como de NBS Technical Notes 270-3 (1968) Y 270-4 (1969),editado por D. D. Wagman y colaboradores. Todos 105 valores estan referidos a 1 mol dematerial en el estado fisico indicado, a 1 atm de presion y a 298.15 oK de temperatura. Losvalores para los iones en solucion acuosa (1 M) estan basad os en la convencion de que todaslas propiedades enlistadas para H+(aq)son igual a cera. De donde, con la adicion de valorespara combinaciones neutras de iones con cargas opuestas, se obtiene los valores correctospara soluciones de sa!.

Apendice 4. Datos termodinamicos de compuestos organicos y mo/ecu/asbio/6gicas a 298.15 oK y 1atm.

LiHO LiGO So cpCompuesto Formula Estado (KJ/mol) (KJ/mol) OtK mol)OtK mol)

Acido acetico CH3COOH liq -484.21 -389.45 159.83Acido acetico CH3COOH liq -484.21 -389.45 159.83

aq -485.26 -404.09 205.43buf -485.60 -417.52 249.37

Acido DL-aspartico C4H704N sol -976.96 -729.27 154.39Acido L-aspartico C4H704N sol -972.53 -729.36 170.12 155.27

buf -943.41 -736.51 291.63Acido L-aspartico, ion C4HB04N+ aq -955.17 -733.87 229.28Acido L-aspartico, ion dipolar C4H704N+- aq -947.43 -718.06 216.31Acido L-aspartico, ion dipolar C4H604N+2- aq -943.41 -695.88 155.65Acido butirico C4H302 liq -535.13 -379.07 226.35 179.49

aq -532.62 -399.57 303.76buf -535.55 -412.54 320.91

Acido a-cetoglutarico CSH60S sol -1026.34

214 Termodinamica bio/6gica

ilHo ilGo So CpCompue?to Formula Estado (KJ/mol) (KJ/mol) OrK mol)OrK mol)

Acido citrico C6Ha07 sol -1543.90buf -1515.78 -1288.63 512.54

Acido citico, monohidrato C6H100a sol -1838.45 -1473.56 283.47 268.15Acido f6rmico HCOOH liq -409.20 -346.02 128.95 99.04Acido fumarico C4H404 sol -810.65 -653.25 166.11 142.26

aq -774.88 -645.80 261.08buf -777.39 -684.38 381.99

Acido L-glutamico CsHg04N sol -1009.18 -730.95 188.20 175.23buf -981.98 -721.87 248.95

Acido L-glutamico, ion CSH1004N+ aq -981.57 -734.63 293.72Acido L-glutamico, ion dipolar CSH904N+- aq -981.99 -721.87 248.95Acido L-glutamico, ion dipolar CsHa04N+z- aq -979.89 -697.47 174.05Acido L(+)-Iactico C3H603 sol -694.04 -523.25 143.51 127.61

aq -686.22 -538.77 221.75buf -686.64 -557.35

Acido DL-Iactico C3H603 liq -673.62 -518.82 192.05 211.29Acido L-malico C4H60S sol -1103.32

aq -891.61buf -925.08

Acido DL-malico C4H6OS sol -1105.41Acido oxalacetico C4H40S sol -984.50

aq -832.62buf -875.71

Acido palmitico C16H3Z0Z sol -890.77 -315.06 455.22 460.66aq -287.86buf -299.16

Acido piruvico C3H403 liq -585.76aq -607.52 -486.60 179.91buf -596.22 -513.38

Acido succinico C4H604 sol -940.81 -747.35 175.73 153.97aq -912.20 -746.64 269.45 230.12buf -908.72 -772.99 369.45

Acetato CH3COO- aq -485.60 -376.89 112.97Acetato de etilo C4HaOz liq -481.99 -337.65 262.76 105.44Acetaldehido CH3CHO gas -246.81 -139.08 264.22 56.07Acetona CH3COCH3 liq -246.81 -153.55 198.74 126.78Acetileno CzHz gas 226.73 209.20 200.83 43.93Adenina CsHsNs sol 97.07 -300.41 151.04 143.09DL-Alanina C3H70ZN sol -563.59 -371.96 132.21 121.75L-Alanina C3H70zN sol -562.75 -370.20 129.20 122.26

buf -554.80 -371.16 158.99L-Alanina, ion C3HaOzN+ aq -557.94 -384.55 192.05 288.70L-Alanina, ion dipolar C3H70Z+- aq -554.80 -371.16 158.99 141.00L-Alaninato, ion C3H60zN- aq -509.61 -314.85 121.75 71.55L-Arginina C6H140ZN4 sol -621.74 -656.89 250.62 233.47

Apendices 215

ilHO ilGO So CpCompuesto Formula Estado (KJ/mol) (KJ/mol) OrK mol) OrK mol)

L-Arginina, ion dipolar C6H1402N4+- aq -615.47L-Aspartato, ion C4Hs04N2- aq -905.84 -638.69 89.96L-Asparagina C4H803N2 sol -790.36 -530.95 174.47 160.67L-Asparagina, ion dipolar C4H803N2+- aq -766.09 -525.93 238.91L-Asparagina, monohidrato C4H1004N2 sol -1085.75 -767.35 209.62 207.95Benceno C6H6 1iq 49.04 172.80 124.52Butirato, ion C4HzOz- aq -535.55 -372.04 201.67a-Cetoglutarato, ion CsH4Oz- aq -793.41L-Cistefna C3H70zNS sol -532.02 -342.67 169.87 173.22

buf 338.95L-Cisteina, ion C3H80zNS+ aq -349.36L-Cisteina, ion dipolar C3H70zNS+- aq -338.82L-Cisteinato, ion monovalente C3H60zNS- aq -290.99L-Cisteinato, ion divalente C3HsOzNSz- aq -229.58L-Cistina C6H lZ04NzSz sol -1044.33 -685.76 280.58 261.92

buf -668.19L-Cistina, ion C6H1404Nzsi+ aq 684.50L-Cistina, ion dipolar C6H1304NzSz+- aq -678.23L-Cistina, ion dipolar C6H lZ04NzS2+2- aq -666.51L-Cistinato, ion C6H1004NzS2- aq -562.33Citra to, ion monovalente C6H707- aq -1520.88 -1226.33 286.19 187.86Citra to, ion divalente C6H707Z- aq -1518.46 -1199.18 203.34 0.84Citra to, ion trivalente C6Hs073- aq -1515.11 -1162.69 92.05 -254.81Creatinina C4H70N3 sol -237.65 -28.45 167.36 138.91Creatinina, ion C4HaON3+ aq 4.14Creatina C4H90zN3 sol -536.47 -264.01 189.54 171.96

aq -259.20buf -259.20

Creatina, cation C4H100zN3+ aq -274.39Creatina, anion C4H80ZN3- aq -177.82Creatina, monohidrato C4Hl103N3 sol -833.03 -504.59 234.30 213.38Etano CZH6 gas -84.68 -32.89 229.49 52.66Etanol C2HSOH liq -276.98 -174.18 161.04 111.96Etileno CZH4 gas 52.30 68.12 219.45 43.56Formato, ion HCOO- aq -410.03 -334.72 91.63Fumarato, ion monovalente C4H304- aq -774.46 -628.14 203.34Fumarato, ion divalente C4Hz04z- aq '-777.39 -601.87 105.44Glicerol C3H803 liq -670.70 -479.49 204.60 216.73Glicina CZHS02N sol -537.23 -377.69 103.51 99.20

buf -523.00 -379.91 158.57Glicina, ion C2H60zN+ aq -527.18 -393.30 189.54 171.54Glicina, ion dipolar C2HSOzN+- aq ':'523.00 -379.91 158.57 36.82Glicinato, ion C2H4OzN- aq -478.65 -324.09 120.50 54.81Glicilglicina C4H803NZ sol -746.01 -491.50 189.95 163.59

buf -734.25 -493.08 232.21Glicilglicina, ion C4H903Nz+ aq -735.72 -510.87 286.60 288.70

216 Termodinamica bi%gica

tJ.HO tJ.Go So CpCompuesto Formula Estado (Kl/mol) (Kl/mol) (JrK mol) (JrK mol)

Glicilglicina, ion dipolar C4H803N2+- aq -734.25 -492.08 231.38 158.99Glicilglicinato, ion C4H703N2- aq -689.90 -445.76 222.17a-D-Glucosa C6H1206 sol -1274.45 -910.56 212.13 218.87

aq -1263.06 -914.54 264.01~-D-Glucosa C6H1206 sol -1268.05 -908.89 228.03

aq -1264.24 -915.79 264.01a-~-D-Glucosa C&H1206 aq -1263.78 -916.97 269.45 305.43a-D-Glucosa, monohidrato C&H1407 sol -1571.09 -1149.55 252.30Glucosa- 1-fosfato C&H1309P aq -1789.50

buf -1828.83Glucosa- 1-fosfato, ion monovalente C3H1209P- aq -1783.22Glucosa- 1-fosfato, ion divalente C3H1209P2- aq -1746.11Glucosa-6-fosfato C6H1309P aq -1797.45Glucosa-6-fosfato, ion monovalente C6H1209P- aq -1789.08Glucosa-6-fosfato, ion divalente C6Hl109p2- aq -1753.51L-Glutamato CSH704N2- aq -939.73 -643.50 127.61L-Glutamina CSHlOO3N2 sol -825.92 -532.21 195.10 183.80

buf -805.00 -528.02 251.04L-Glutamina, ion dipolar CSHlOO3N2+- aq -805.00 -528.02 251.04L(+)-Lactato, ion C3HS03- aq -686.64 -516.72 146.44a-Lactosa C12Hn011 sol -2221.70

aq -2232.37 -1564.90 394.13~-Lactosa C12HnOIl sol -2236.77 -1566.91 386.18 410.45a, ~- Lactosa C12HnOI1 aq -2233.09 -1567.33 399.57DL-Leucina C6H1302N sol -649.78 -358.57 207.11 195.39L-Leucina C6H1302N sol -646.85 -356.48 209.62 208.36

buf -643.37 -352.25 206.69L-Leucina, ion C6H1402N+ aq -645.01 -365.56 246.44 -660.24L-Leucina, ion dipolar C6H1302N+- aq -643.37 -352.25 207.53 506.26L-Leucinato, ion C6H1202N- aq -600.61 -296.60 164.43 447.69Malato, ion monovalente C4HsOS- aq -871.95Malato, ion divalente C4H40S2- aq -842.66a-Maltosa C12Hn011 aq -2238.27 -1573.60 403.34~-Maltosa C12HnOll aq -2237.73 -1572.18 400.41a,~-Maltosa C12HnOll aq -2238.06 -1574.69 407.94~-Maltosa, monohidrato C12H24012 sol -2539.27 -1809.58 417.56 453.96Metano CH4 gas -74.85 -50.79 186.19 35.73Metanol CH30H liq -238.66 -166.31 126.78 81.59

aq -245.89 -175.23 132.34L-Metionina CSH1I02NS sol -761.07 -508.36 231.46 290.20L-Metionina, ion CSH1202NS+ aq -744.75L-Metionina, ion dipolar CsH 1102NS+- aq -744.33Oxaloacetato, ion monovalente C4H30S- aq -818.39Oxaloacetato, ion divalente C4H20s2- aq -793.29Palmitato, ion Cl&H3102- aq -259.41

Apendices 217

~HO ~GO SO CpCompuesto Formula Estado (KJ/mol) (KJ/mol) OrK mol) OtK mol)

Piruvato, ion C3H303- aq -596.22 -472.37 171.542-Propanol C3H70H liq -317.86 -180.29 180.58 154.22

aq -330.83 -185.23 153.55Succinato, ion monovalente C6HS04- aq -908.89 -722.62 199.99 96.23Succinato, ion divalente C6H4042- aq -908.68 -690.44 92.88 122.59Sacarosa C12H22011 sol -2221.70 -1544.31 360.24 425.51

aq -2215.85 -1551.43 403.76 633.04DL-Valina CSH1102N sol -617.98 -359.82 181.17

buf -617.98 -358.65 176.98L-Valina, ion CSHI202N+ aq -612.24 -371.71 240.16 547.27L- Valina, ion dipolar CSH1102N+- aq -611.99 -358.65 176.98 389.11L-Valinato, ion CSH1002N- aq -567.43 -307.40 174.89 333.88

Los datos de esta tabla fueron obtenidos de R.C. Wilhoit "Thermodynamic properties of biochemicalsubstances" publicados en Biochemical Microcalorimetry, editado por HD. Brown, capitulo 2,Academic Press Inc., New York, 1969.EIsimbolo buf significa los valores en el equilibrio de una soluci6n amortiguadora 0 tamp6n a pH 7. Lasconcentraciones de las soluciones acuosas son todas de 1 M.