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15.8: Apéndice H- Propiedades Termodinámicas Molares Estándar

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    Los valores en estas tablas son para una temperatura de 298.15 K (25.00\(\degC\)) y la presión estándar\(p\st = 1\units{bar}\). Los estados estándar de solutos se basan en la molalidad. Un sólido cristalino se denota por cr.

    La mayoría de los valores de esta tabla provienen de un proyecto del Comité de Datos para la Ciencia y la Tecnología (CODATA) para establecer un conjunto de valores recomendados, internamente consistentes de propiedades termodinámicas. Los valores de\(\Delsub{f}H\st\) y\(S\m\st\) mostrados con incertidumbres son valores recomendados por CODATA (J. D. Cox, D. D. Wagman, y V. A. Medvedev, CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1989).

    \ begin {array} {lccc}\ hline\ textbf {Sustancia inorgánica} &\ negridsymbol {\ D {\ frac {\ Delsub {f} H\ st} {\ textbf {kJ mol} ^ {-1}}} &\ negridsymbol {\ D {\ frac {S\ m\ st} {\ textbf {J K} ^ {-1}\ textbf tbf {mol} ^ {-1}}}} &\ negridsymbol {\ D {\ frac {\ Delsub {f} G\ st} {\ textbf {kJ mol} ^ {-1}}}\\ hline\ tx {Ag (cr)} & 0 & 42.55\ pm0.20 & amp; 0\\\ tx {AgCl (cr)} & -127.01\ pm0.05 & 96.25\ pm0.20 & -109.77\\\ tx {C (cr, grafito)} & 0 & 5.74\ pm0.10 & 0\\\ tx {CO (g)} & -110.53\ pm0.17 & 197.660\ pm0.004 & -137.17\\ tx {CO g\(_2\) ()} & -393.51\ pm0.13 & 213.785\ pm0.010 & -394.41\\\ tx {Ca (cr)} & 0 & 41.59\ pm0.40 & 0\\\ tx {CaO\(_3\) (cr, calcita)} & -1206.9 & 92.9 & -1128.8\\ tx {CaO (cr)} & -634.92\ pm0.90 & 38.1\ pm0.4 & -603.31\\ tx {Cl\(_2\) (g)} & 0 & 223.081\ pm0.010 & 0\\ tx {tx F\(_2\) (g)} & 0 & 202.791\ pm0.005 & 0\\\ tx {H\(_2\) (g)} & 0 & 130.680\ pm0.003 & 0\\\ tx {HCl (g)} & -92.31\ pm0.10 & 186.902\ pm0.005 & -95.30\\\ tx {HF (g)} & -273.30\ pm0.70 & 173.779\ pm0.003 & -275.40\\ tx {HI (g)} & 26.50\ pm0.70 & 173.779\ pm0.003 & -275.40\\ tx {HI (g)} & 26.50\ pm0.10 10 & 206.590\ pm0.004 & 1.70\\\ tx {H\(_2\) O (l)} & -285.830\ pm0.040 & 69.95\ pm0. 03 & -237.16\\\ tx {H\(_2\) O (g)} & -241.826\ pm0.040 & 188.835\ pm0.010 & -228.58\\ tx {H\(_2\) S (g)} & -20.6\ pm0.5 & 205.81\ pm0.05 & -33.44\\ tx {Hg (l)} & 0 & 75.90\ pm0.12 & 0\\ tx {tx Hg (g)} & 61.38\ pm0.04 y 174.971\ pm0.005 & 31.84\\\ tx {hGo (cr, rojo)} & -90.79\ pm0.12 & 70.25\ pm0.30 & -58.54\\\ tx {Hg\(_2\) Cl\(_2\) (cr)} & -265.37\ pm0.40 & 191.6\ pm0.8 & -210.72\\\ tx {I\(_2\) (cr)} & 0 & 116.14\ pm0.30 & 0\\ tx {K (cr)} & 0 & 64.68\ pm0.20 & 0\\ tx {KI (cr)} & -327.90 & 106.37 & -323.03\\ \ tx {KOH (cr)} & -424.72 & 78.90 & -378.93\\\ tx {N\(_2\) (g)} & 0 & 191.609\ pm0.004 & 0\\\ tx {NH\(_3\) (g)} & -45.94\ pm0.35 & 192.77\ pm0.05 & -16.41\\\ tx {NO\(_2\) (g)} & 33.10 & 240.04 & 51.22\\ tx {N\(_2\) O\(_4\) (g)} y 9.08 & 304.38 & 97.72\\\ tx {Na (cr)} & 0 & 51.30\ pm0.20 & 0\\\ tx {NaCl (cr)} & -411.12 & 72.11 & -384.02\\\ tx {O\(_2\) (g)} & 0 & 205.152\ pm0.005 & 0\\ tx {O\(_3\) (g)} & 142.67 & 238.92 & 163.14\\\ tx {P (cr, blanco)} & 0 & 41.09\ pm0.25 & 0\\\ tx {S (cr, rómbico)} & 0 & 32.054\ pm0.050 & 0\\\ tx {SO\(_2\) (g)} & -296.81\ pm0.20 & 248.223\ pm0.050 & -300.09\\ tx {Si (cr)} & 0 & 18.81\ pm0.08 & 0\\ tx {SiF\(_4\) (g)} & -1615.0\ pm0.8 & 282.76\ pm0.50 & -1572.8\\\ tx {SiO\(_2\) (cr,\(\alpha\) - cuarzo)} & -910.7\ pm1.0 & 41.46\ pm0.20 & -856.3\\\ tx {Zn (cr)} & 0 & 41.63\ pm0.15 & 0\\ [1mm]\ tx {ZnO (cr)} & -350.46\ pm0.27 & 43.65\ pm0.40 & -320.48\\ hline\ end {array}

    \ begin {array} {lccc}\ hline\ textbf {Compuesto orgánico} &\ negridsymbol {\ D {\ frac {\ Delsub {f} H\ st} {\ textbf {kJ mol} ^ {-1}}} &\ negridsymbol {\ D {\ frac {S\ m\ st} {\ textbf {J K} ^ {-1}\ textbf tbf {mol} ^ {-1}}}} &\ negridsymbol {\ D {\ frac {\ Delsub {f} G\ st} {\ textbf {kJ mol} ^ {-1}}}\\ hline\ tx {CH\(_4\) (g)} & -74.87 & 186.25 & -50.77\\ tx {CH\(_3\) OH (l)} & -238.9 & 127.2 & -166.6\\\ tx {CH\(_3\) CH\(_2\) OH (l)} & -277.0 & 159.9 & -173.8\\\ tx {C\(_2\) H\(_2\) (g)} & 226.73 & 200.93 & 209.21\\ tx {C\(_2\) H\(_4\) (g)} & 52.47 y 219.32 & 68.43\\ \ tx {C\(_2\) H\(_6\) (g)} & -83.85 & 229.6 & -32.00\\\ tx {C\(_3\) H\(_8\) (g)} & -104.7 & 270.31 & -24.3\\\ tx {C\(_6\) H\(_6\) (l, benceno)} & 49.04 & 173.26 & 124.54\\ hline\ end {array}

    \ begin {array} {lccc}\ hline\ textbf {Soluto iónico} &\ negridsymbol {\ D {\ frac {\ Delsub {f} H\ st} {\ textbf {kJ mol} ^ {-1}}} &\ negridsymbol {\ D {\ frac {S\ m\ st} {\ textbf {J K} ^ {-1}\ textbf {mol} ^ {-1}}}} &\ negridsymbol {\ D {\ frac {\ Delsub {f} G\ st} {\ textbf {kJ mol} ^ {-1}}}}\\ hline\ tx {Ag\(^+\) (aq)} & 105.79\ pm0.08 & ; 73.45\ pm0.40 & 77.10\\\ tx {CO\(_3^{2-}\) (aq)} & -675.23\ pm0.25 & -50.0\ pm1.0 & -527.90\\\ tx {Ca\(^{2+}\) (aq)} & -543.0\ pm1.0 y -56.2\ pm1.0 y -552.8\\ tx {Cl\(^-\) (aq)} & -167.08\ pm0.10 y 56.60\ pm0.20 y -131.20 22\\\ tx {F\(^-\) (aq)} y -335.35\ pm0.65 & -13.8\ pm0.8 & -281.52\\\ tx {H\(^+\) (aq)} & 0 & 0 & 0\\ tx {HCO\(_3^-\) (aq)} & -689.93\ pm2.0 & 98.4\ pm0.5 & -586.90\\ tx {HS\(^-\) (aq)} & -16.3\ pm1.5 & 67\ pm 5 & 12.2\\ tx {HSO (aq)} & -16.3\ pm1.5 & 67\ pm 5 & 12.2\\ tx {HSO\(_4^-\) (aq)} & -886.9\ pm1.0 y 131.7\ pm3.0 y -755.4\\\ tx {Hg \(_2^{2+}\)(aq)} & 166.87\ pm0.50 & 65.74\ pm0.80 & 153.57\\\ tx {I\(^-\) (aq)} & -56.78\ pm0.05 & 106.45\ pm0.30 & -51.72\\\ tx {K\(^+\) (aq)} & -252.14\ pm0.08 & 101.20\ pm0.20 & -282.52\\ tx {NH\(_4^+\) (aq)} & -133.26\ pm0.25 & 111.17\ pm0.40 & -79.40\\ \ tx {NO\(_3^-\) (aq)} & -206.85\ pm0.40 & 146.70\ pm0.40 & -110.84\\\ tx {Na\(^+\) (aq)} & -240.34\ pm0.06 & 58.45\ pm0.15 & -261.90\\ tx {OH\(^-\) (aq)} & -230.015\ pm0.040 & -10.90\ pm0.20 & -157.24\\ tx {tx S\(^{2-}\) (aq)} y 33.1 y -14.6 y 86.0\\\ tx {SO \(_4^{2-}\)(aq)} & -909.34\ pm0.40 & 18.50\ pm0.40 & -744.00\\ hline\ end {array}

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