Organic Compounds: Physical and Thermochemical Data
Hcø Standard molar enthalpy change of combustion at 298 K
Hfø Standard molar enthalpy change of formation at 298 K
Gfø Standard molar Gibbs free energy change of formation at 298 K
Sø Standard molar entropy at 298 K.  Chosen standard pressure is 1 atm
Compound Formula M
g mol-1
Hcø
kJ mol-1
Hfø
kJ mol-1
Gfø
kJ mol-1
Sø
J mol-1 K-1
Carbon monoxide CO(g) 28.0 -283.0 -110.5 -137.23 197.6
Carbon dioxide CO2(g) 44.0  ------ -393.5 -394.4 213.6
Alkanes





Methane CH4(g) 16.0 -890.3 -74.8 -50.8 186.2
Ethane CH3CH3(g) 30.1 -1559.7 -84.7 -32.9 229.5
Propane CH3CH2CH3(g) 44.1 -2219.2 -104.5 -23.4 269.9
Butane CH3(CH2)2CH3(g) 58.1 -2876.5 -126.5 -15.6 310.1
Pentane CH3(CH2)3CH3(l) 72.2 -3509.1 -173.2 -9.2 261.2
Hexane CH3(CH2)4CH3(l) 86.2 -4163.0 -198.6 -4.2 295.9
Heptane CH3(CH2)5CH3(l) 100.2 -4816.0 -224.0 1.3 328.5
Octane CH3(CH2)6CH3(l) 114.2 -5470.2 -250.0 6.4 361.1
Nonane CH3(CH2)7CH3(l) 128.3 -6124.6 -274.0 11.9 393.7
Decane CH3(CH2)8CH3(l) 142.3 -6777.9 -300.9 17.4 425.9
Undecane CH3(CH2)9CH3(l) 156.3 -7430.9 -327.2 22.8 -----
Dodecane CH3(CH2)12CH3(l) 170.3 -8086.5 -350.9 28.4 -----
Eicosane CH3(CH2)18CH3(s) 282.6



Branched Alkanes





2-Methylpropane (CH3)2CHCH3(g) 58.1 -2868.5 -134.5 -17.8 294.6
2-Methylbutane (CH3)2CHCH2CH3(l) 72.2 -3503.4 -178.9 -14.5 260.4
2-Methylpentane (CH3)2CH(CH2)3CH3(l) 86.2 -4157.0 -204.6 -8.1 -----
2-Methylhexane (CH3)2CH(CH2)4CH3(l) 100.2 -4811.4 -229.5 -2.0 -----
2-Methylheptane (CH3)2CH(CH2)5CH3(l) 114.2  -5465.2 -255.0 3.8 -----
2,2-Dimethylpropane C(CH3)4(g) 72.2 -3492.5 -189.8 -15.2 306.4
Compound Formula M
g mol-1
Hcø
kJ mol-1
Hfø
kJ mol-1
Gfø
kJ mol-1
Sø
J mol-1 K-1
Cycloalkanes





Cyclopropane (CH2)3(g) 42.1 -2091.4 53.3 104.1 -----
Cyclobutane (CH2)4(g) 56.1 -2720.9 3.7 ----- -----
Cyclopentane (CH2)5(l) 70.1 -3289.4 -107.1 36.5 204.3
Cyclohexane (CH2)6(l) 84.2 -3919.5 -156.3 26.8 204.4
Cycloheptane (CH2)7(l) 98.2 -4598.4 -156.7 ----- -----
Cyclooctane (CH2)8(l) 112.2 -5266.7 -167.7 ----- -----
Cyclononane (CH2)9(l) 126.2 -5932.5 -181.2 ----- -----
Alkenes





Ethene CH2=CH2(g) 28.1 -1410.8 52.5 68.2 219.5
Propene CH2=CH2CH3(g)  42.1 -2058.1 20.2 74.7 266.9
But-1-ene CH2=CHCH2CH3(g) 56.1 -2716.8 -0.4 72.0 305.6
trans-But-2-ene CH3CH=CHCH3(g)  56.1 -2705.0 -12.2 62.9 296.4
cis-But-2-ene CH3CH=CHCH3(g) 56.1 -2709.4 -7.8 65.9 300.8
Hex-1-ene CH2=CH(CH2)3CH3(l) 84.2 -4003.4 -72.4 ----- -----
Buta-1,2-diene CH2=C=CHCH3(g) 54.1 -2593.7 162.3 201.5 293.0
Buta-1,3-diene CH2=C=CHCH3(g) 54.1 -2541.3 109.9 151.9 278.7
Cyclohexene CH2(CH2)3CH=CH2(l) 81.2 -3751.9 -38.1 ----- -----
Phenylethene (styrene) C6H5CH=CH2(l) 104.2 -4395.0 103.8 202.5 345.1
Alkynes





Ethyne CHCH(g) 26.0 -1300.8 228.0 209.2 200.8
Propyne CH3CHCH(g) 40.1 -1938.7 186.6 194.2 248.1
1-Butyne  CH3CH2CCH(g) 54.1 -2596.6 165.2 203.1 -----
2-Butyne CH3CCCH3(l) 54.1 -2576.8  118.8 187.2 -----
Arenes





Benzene C6H6(l) 78.1 -3267.4 49.0 124.5 172.8
Napthalene C10H8(s) 128.2 -5155.9 77.7 ----- -----
Methylbenzene C6H5CH3(l) 92.1 -3909.8 12.1 110.6 319.7
Ethylbenzene C6H5CH2CH3(l) 106.2 -4563.9 -13.1 19.7 255.2
Propylbenzene C6H5(CH2)2CH3(l)  120.2 -5218.0 -38.3 123.8 290.5
1,2-Dimethylbenzene C6H5(CH3)2(l)  106.2 -4552.6 -24.4 110.6 246.5
1,3-Dimethylbenzene C6H5(CH3)2(l)  106.2 -4551.6 -25.4 107.8 252.1
1,4-Dimethylbenzene C6H5(CH3)2(l) 106.2 -4552.6 -24.4 110.3 247.2
Ethenylbenzene (vinyl) C6H5CH=CH2(l) 104.2 -4395.0 103.8 202.5 345.1
Compound Formula M
g mol-1
Hcø
kJ mol-1
Hfø
kJ mol-1
Gfø
kJ mol-1
Sø
J mol-1 K-1
Amines





Methylamine
CH3NH2(g)  31.1 -1085.0 -23.0 32.1 -----
Dimethylamine (CH3)2NH(g) 45.1 -1768.8 -18.5 59.2 -----
Trimethylamine (CH3)3N(g) 59.1 -2442.9 -23.7 76.7 -----
Ethylamine CH3CH2NH2(g) 45.1 -1739.8 -47.5 ----- -----
1-Aminopropane CH3(CH2)2NH2(l) 59.1 -2365.1 -101.5 ----- -----
2-Aminopropane CH3CHNH2CH3(l) 59.1 -2354.3 -112.3 ----- -----
1-Aminobutane CH3(CH3)3NH2(l) 73.1 -3018.3 -127.6 -81.8 -----
2-Aminobutane CH3CH2CHNH2CH3(l) 73.1 -3008.4 -137.5 ----- -----
Diethylamine (C2H5)2NH(l) 73.1 -3042.1 -103.8 ----- -----
Triethylamine (C2H5)3N(l) 101.2 -4376.8 -127.7 ----- -----
Phenylamine C6H5NH2(l) 93.1 -3392.6 31.3 ----- -----
Halogens





Fluoromethane CH3F(g) 34.0 ----- -247.0 -223.0 -----
Chloromethane CH3Cl(g) 50.5 -764.0 -82.0 -57.4 234.5
Bromomethane CH3Br(g) 94.9 -769.9 -37.2 -25.9 246.3
Iodomethane CH3I(l) 141.9 -814.6 -15.5 13.4  163.2
Dichloromethane CH2Cl2(l) 84.9 -605.8 -124.1 -63.2 177.8
Trichloromethane CHCl3(l)  119.4 -474.0 -135.1 -71.4 201.8
Tetrachloromethane CCl4(l) 153.8 -359.9 -129.6 -65.3 216.4
Tetrabromomethane CBr4(s)  331.6 ----- 18.8 47.7 212.5
Tetraiodomethane CI4(s) 519.6 ----- ----- ------ ------
Chloroethane CH3CH2Cl(g) 64.5 -1413.1 -136.8 -52.9 ------
Bromoethane CH3CH2Br(l) 109.0 -1424.7 -90.5 ------ ------
Iodoethane CH3C2I(l) 156.0 -1466.5 -40.7 ------ ------
1,2-Dibromoethane CH2BrCH2Br(l) 187.9 ------ -37.8 -80.7 ------
1,2-Dichloroethane CH2ClCH2Cl(l) 99.9 -1246.4 -165.0 ------ ------
1,1,1-Trichloroethane CCl3CH3(l)  133.4 -1108.0 -177.3 ------ ------
Tetrachloroethene C2Cl4(l) 165.8 -830.9 -48.6 ------ ------
1-Chloropropane CH3CH2CH2Cl(l) 78.5 -2072.1 -161.3 ------ ------
2-Chloropropane CH3CHClCH3(l) 78.5 -2028.4 -172.2 ------ ------
1-Bromopropane CH3CH2CH2Br(l) 123.0 -2056.8 -116.4 ------ ------
2-Bromopropane CH3CHBrCH3(l) 123.0 -2052.0 -128.5 ------ ------
Compound Formula M
g mol-1
Hcø
kJ mol-1
Hfø
kJ mol-1
Gfø
kJ mol-1
Sø
J mol-1 K-1
1-Iodopropane CH3CH2CH2I(l) 170.0 ------- -68.4 ------ ------
2-Iodopropane CH3CHICH3(l) 170.0 ------- -75.7 ------ ------
1-Chlorobutane CH3(CH2)3Cl(l) 92.6 -2704.1 -187.9 ------ ------
1-Bromobutane CH3(CH2)3Br(l) 137.0 -2716.5 -143.8 ------ ------
2-Bromobutane CH3CH2CHBrCH3(l) 137.0 -2705.2 -155.2 ------ ------
1-Iodobutane CH3(CH2)3I(l) 184.0 ------- ------ ------ ------
2-Chloro-2-methylpropane (CH3)2CClCH3(l) 92.6 -2692.8 -191.1 ------ ------
2-Bromo-2-methylpropane (CH3)2CBrCH3(l) 137.0 ----- -163.4 ------ ------
2-Iodo-2-methylpropane  (CH3)2CICH3(l)  184.0 ----- -107.4 ------ ------
Chlorobenzene C6H5Cl(l) 112.6 -3111.6 11.0 93.6 ------
Bromobenzene C6H5Br(l) 157.6 ------ 60.5 112.2 ------
Iodobenzene C6H5I(l) 204.6 -3192.8 14.5 208.0 ------
Chloro-methyl-benzene C6H5CH2Cl(l) 126.6 -3708.7 -32.8 ------ ------
Alcohols





Methanol CH3OH(l) 32.0 -726.0 -239.1 -166.4 239.7
Ethanol CH3CH2OH(l) 46.1 -1367.3 -277.1 -174.9 160.7
Propan-1-ol CH3CH2CH2OH(l) 60.1 -2021.0 -302.7 -171.3 196.6
Propan-2-ol CH3CHOHCH3(l) 60.1 -2005.8 -317.9 -180.3 180.5
Butan-1-ol CH3(CH2)2CH2OH(l) 74.1 -2675.6 -327.4 -168.9 228.0
Pentan-1-ol CH3(CH2)3CH2OH(l) 88.2 -3328.7 -353.6 -163.3 259.0
Hexan-1-ol CH3(CH2)4CH2OH(l) 102.2 -3983.8 -377.8 -160.0 289.5
Heptan-1-ol CH3(CH2)5CH2OH(l) 116.2 -4637.6 -403.3 -150.0 325.9
Octan-1-ol CH3(CH2)6CH2OH(l) 130.2 -5293.6 -426.6 -136.4 354.4
Ethan-1,2-diol CH2OHCH2OH(l) 62.1 -1179.5 -454.8 -323.2 166.9
Propan-1,2,3-triol CH2OHCHOHCH2OH(l) 92.1 -1655.2 -688.5 ------ ------
2-Methylpropan-2-ol (CH3)3COH(l) 74.1 -2643.8 -359.2 ------ ------
Cyclohexanol CH2(CH2)4CHOH(l) 100.2 -3737.0 -348.8 -1134.2 ------
Ethers





Methoxymethane CH3OCH3(g) 46.1 -1460.4 -184.0 -114.1 266.7
Ethoxyethane CH3CH2OCH2CH3(l) 74.1 -2724.0 -279.0 -122.7 251.9
Methoxybenzene C6H5OCH3(l) 108.1 -3782.9 -114.8 ------ ------
Compound Formula M
g mol-1
Hcø
kJ mol-1
Hfø
kJ mol-1
Gfø
kJ mol-1
Sø
J mol-1 K-1
Aldehydes





Methanal HCHO(g) 30.0 -570.6 -108.7 -113.0 218.7
Ethanal CH3CHO(g) 44.1 -1167.1 -191.5 -128.2 160.2
Propanal CH3CH2CHO(l) 58.1 -1820.8 -217.1 -142.1 ------
Butanal CH3CH2CH2CHO(l) 72.1 -2476.0 -241.2 -306.4 ------
2-Methylpropanal (CH3)2CHCHO(l) 72.1 -2468.3 -248.9 ------ ------
Pentanal CH3CH2CH2CH2CHO(l) 86.1 -3166.0 -230.5 ------ ------
Benzaldehyde C6H5CHO(l) 106.1 -3525.1 -86.8 ------ ------
Ketones





Propanone (acetone) CH3COCH3(l) 58.1 -1816.5 -248.0 -154.0 ------
Butanone CH3CH2COCH3(l) 72.1 -2441.5 -275.7 -156.0 ------
Pentan-2-one CH3(CH2)2COCH3(l) 86.1 -3099.1 -297.4 ------ ------
Pentan-3-one CH3CH2COCH2CH3(l) 86.1 -3099.5 -297.0 ------ ------
3-Methylbutanone (CH3)2CHCOCH3(l) 86.1 -3097.0 -299.5 ------ ------
Hexan-2-one CH3(CH2)3COCH3(l) 100.2 -3753.8 -322.0 ------ ------
Cyclohexanone CH2(CH2)4CO(l) 98.1 -3519.3 -270.7 ------ ------
Phenylethanone C6H5COCH3(l) 120.2 -4148.7 -142.5 ------ ------
Carboxylic Acids





Methanoic HCOOH(l) 46.0 -254.3 -425.0 -361.4 129.0
Ethanoic CH3COOH(l) 60.1 -874.1 -484.5 -389.9 159.8
Propanoic CH3CH2COOH(l) 74.1 -1527.2 -510.7 -383.5 ------
Butanoic CH3CH2CH2COOH(l) 88.1 -2183.3 -533.9 ------ ------
2-Methylpropanoic (CH3)2CHCOOH(l) 88.1 -2343.9 -373.3 ------ ------
3-Chloroethanoic ClCH2COOH(s) 94.5 -715.5 ------- ------ ------
3,3-Dichloroethanoic Cl2CHCO2H(l) 128.9 ------- ------- ------ ------
3,3,3-Trichloroethanoic Cl3CCOOH(s) 163.4 -388.5 -513.8 ------ ------
1-Aminoethanoic NH2CH2COOH(s) 75.1 -981.1 -528.6 ------ ------
2-Hydroxypropanoic (lactic) CH3CHOHCOOH(l) 90.1 -1343.9 -694.0 ------ ------
Ethandioic COOHCOOH(s) 90.0 -243.3 -829.5 ------ ------
Hexanedioic CO2H(CH2)4CO2H(s) 146.1 -2795.7 -994.0 ------ ------
Benzenesulphonic C6H5SO3H(s) 158.1 ------ ------ ------ ------
Benzoic C6H5COOH(s) 122.1 -3227.0 -384.9 -245.1 ------
Compound Formula M
g mol-1
Hcø
kJ mol-1
Hfø
kJ mol-1
Gfø
kJ mol-1
Sø
J mol-1 K-1
 Acid Derivatives





Ethanoyl chloride CH3COCl(l) 78.5 ------- -272.9 -208.0 200.8
Ethanoyl bromide CH3COBr(l) 123.0 ------- -223.5 ------- -------
Ethanoyl iodide CH3COI(l) 170.0 ------- -163.5 ------- -------
Ethanamide (acetamide) CH3CONH2(s) 59.1 -1184.6 -317.0 ------- -------
Phenylethanamide CH2CONHC6H5(s) 135.2 -4224.9 -209.2 ------- -------
Ethanoic anhydride CH3CH2COOCH2CH3(l) 102.1 -1794.2 -637.2 ------- -------
Esters





Methyl methanoate HCOOCH3(l) 60.1 -972.5 -386.1 ------- -------
Methyl ethanoate CH3COOCH3(l) 74.1 -1592.1 -445.8 ------- -------
Methyl propanoate CH3CH2COOCH3(l) 88.1 -2245.6 -471.6 ------- -------
Ethyl methanoate HCO2CH3CH3(l) 74.1 ------ -371.0 ------- -------
Ethyl ethanoate CH3CO2CH2CH3(l) 88.1 -2237.9 -479.0 ------- -------
Ethyl propanoate CH3CH2COOCH2CH3(l) 102.1 -2893.8 -502.7 ------- -------
Ethyl 3-oxo-butanoate CH3COOCH3COOC2H5(l) 130.1  -2890.3 -506.2 ------ ------
Nitriles





Ethanenitrile CH3CN(l) 41.1 -1247.1 31.4 ------ ------
Propanenitrile CH3CH2CN(l) 55.1 -1910.5 15.5 ------ ------
Butanenitrile CH3(CH2)2CN(l) 69.1 -2568.2 -5.8 ------ ------
Propanenitrile CH2=CHCN(l) 53.1 -1756.4 147.2 ------ ------
Miscellaneous





Carbamide (urea) NH2CONH2(s) 60.1 -632.2 -332.9 -196.8 104.6
Cyclooctatetraene C8H8(l) 104.2 -4545.7 254.5 358.1 ------
1,2-Epoxyethane C2H5O(l) 44.1 -1262.9 -77.6 ------ ------
1,2-Epoxypropane CH3CHCH2O(l) 58.1 -1917.4 -122.6 ------ ------
Furan (CH)4O(l) 68.1 -2083.2 -62.3 ------ ------
Nitrobenzene C6H5NO2(l)  123.1 -3087.9 12.4 141.6 ------
Phenol C6H5OH(s) 94.1 -3053.4 -165.0 -47.5 ------
Pyridine (CH)5N 79.1 -2783.2 101.2 181.2 ------
Thiocarbamide NH2CSNH2(s) 76.1 ------- -93.0 ------ ------
Fructose C6H12O6(s) 180.2 -2810.2 -1265.6 ------ ------
Glucose C6H12O6(s) 180.2 -2902.5 -1273.3 ------ ------
Sucrose C12H22O11(s) 342.3 -5639.7 -2226.1 ------ ------