Heat capacities of liquid ketones and aldehydes at 298 K

1980 ◽  
Vol 58 (22) ◽  
pp. 2305-2306 ◽  
Author(s):  
Richard Fuchs
Keyword(s):  
Atmospheric Pressure ◽  
Heat Capacities ◽  
Aromatic Ketones

The heat capacities of 25 liquid aliphatic, alicyclic, and aromatic ketones and aldehydes at 298.2 K and atmospheric pressure have been measured calorimetrically with a typical uncertainty of 0.5%. Additive parameters are proposed for estimating Cp(1) of ketones and aldehydes.

Heat capacities of liquid 2,3,6-trimethylpyridine, 2,4,6-trimethylpyridine and 3-methoxypropionitrile within the range of temperatures of 300 to 328 K

1991 ◽  
Vol 56 (12) ◽  
pp. 2786-2790 ◽  
Author(s):  
Václav Svoboda ◽  
Milan Zábranský
Keyword(s):  
Temperature Interval ◽  
Atmospheric Pressure ◽  
Liquid State ◽  
Adiabatic Calorimeter ◽  
Heat Capacities

Molar heat capacities of 2,3,6-trimethylpyridine, 2,4,6-trimethylpyridine and 3-methoxypropionitrile in the liquid state were measured at the constant atmospheric pressure in the temperature interval of 300.60 to 328.35 K. The static type of adiabatic calorimeter was used for the measurements.

Heat Capacities of Some Alkyl Acetates at 295-323 K

1997 ◽  
Vol 62 (10) ◽  
pp. 1527-1532 ◽  
Author(s):  
Václav Svoboda ◽  
Kornelia Gottmanová ◽  
Vladimír Hynek ◽  
Bohumír Koutek
Keyword(s):  
Experimental Data ◽  
Linear Function ◽  
Atmospheric Pressure ◽  
Heat Capacities ◽  
Group Additivity ◽  
Temperature Range ◽  
Alkyl Acetates

Molar heat capacities Cp,m at constant atmospheric pressure have been determined with a typical uncertainty of about 0.3% for eight liquid alkyl acetates H(CH2)nOCOCH3 (n = 6-12, 14), over the temperature range 295-323 K. The Cp,m values were found to be a linear function of temperature. A comparison of experimental data with those predicted by the group additivity method demonstrated a rather limited capability of the additivity scheme to predict correctly the Cp,m values for higher (n > 10) homologues in the series.

The heat capacities of acetone, methyl iodide and mixtures thereof in the liquid state

1962 ◽  
Vol 267 (1330) ◽  
pp. 384-394 ◽  
Keyword(s):  
Heat Capacity ◽  
Methyl Iodide ◽  
Atmospheric Pressure ◽  
Excess Heat Capacity ◽  
Liquid Mixtures ◽  
Heat Capacities ◽  
Constant Volume ◽  
Isothermal Compression ◽  
Compound Formation ◽  
Total Heat Capacity

The heat capacities of liquid mixtures of acetone and methyl iodide of various compositions have been determined at atmospheric pressure in the temperature range — 20 to 35 °C. The corresponding compressibilities have also been measured, and the heat capacities at constant volume determined as functions of the temperature and volume. The heat capacities increase on isothermal compression, and with rising temperature at constant volume. Resolution of the total heat capacity into its many components shows that the configurational contribution to the heat capacity at the melting point is R cal mole -1 deg -1 for methyl iodide and about 2 R cal mole -1 deg -1 for acetone. The excess heat capacity at constant volume over that estimated on an additivity basis is small, and rises with a rise in temperature to about 3 % of the total value a t 35 °C. A comparison of the present data with those relating to the acetone + chloroform system indicates that compound formation is less likely in the acetone + methyl iodide system .

scholarly journals Molar heat capacities of the mixture {1,8-cineole + ethanol} at several temperatures and atmospheric pressure

2016 ◽  
Vol 92 ◽  
pp. 146-151 ◽  
Author(s):  
José F. Martínez-López ◽  
Severin Schneider ◽  
Daniel Salavera ◽  
Ana M. Mainar ◽  
José S. Urieta ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Heat Capacities
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