Speed of sound, isochoric heat capacity, and coefficient of isothermal compression of heavy water at atmospheric pressure

1978 ◽  
Vol 34 (1) ◽  
pp. 73-75
Author(s):  
A. A. Aleksandrov ◽  
D. K. Larkin
Keyword(s):  
Heat Capacity ◽  
Heavy Water ◽  
Speed Of Sound ◽  
Atmospheric Pressure ◽  
Isochoric Heat Capacity ◽  
Isothermal Compression

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 .

Heat capacity of activation for the hydrolysis of methanesulfonyl chloride and benzenesulfonyl chloride in light and heavy water

1969 ◽  
Vol 47 (22) ◽  
pp. 4199-4206 ◽  
Author(s):  
R. E. Robertson ◽  
B. Rossall ◽  
S. E. Sugamori ◽  
L. Treindl
Keyword(s):  
Heat Capacity ◽  
Free Energy ◽  
Temperature Dependence ◽  
Heavy Water ◽  
Bond Formation ◽  
Sulfonyl Chlorides ◽  
Benzenesulfonyl Chloride ◽  
Methanesulfonyl Chloride ◽  
Hydrolysis Of ◽  
Parameter Temperature Dependence

Rates of solvolysis of methanesulfonyl chloride and benzenesulfonyl chloride have been determined in H2O and D2O. The free energy, enthalpy, entropy, and heat capacity of activation were calculated. The exceptional accuracy of the data permitted an estimation of dΔCp≠/dT from a four parameter temperature dependence of the kinetic rates.From these data we conclude that both sulfonyl chlorides hydrolyse by the same mechanism (Sn2) The change in R from CH3 to C6H5 in RSO2Cl did not alter ΔCp≠ but ΔS≠ (20°) was changed from −8.32 to −13.25 cal deg−1 mole−1, respectively. The significance of this difference is attributed to the probability of bond formation rather than to differences in solvent reorganization.

Isothermal compressibility, isochoric heat capacity, and intrinsic pressure of KCl-NdCl3 melts

2010 ◽  
Vol 2010 (2) ◽  
pp. 146-149 ◽  
Author(s):  
V. I. Minchenko ◽  
I. V. Korzun ◽  
V. A. Khokhlov ◽  
V. N. Dokutovich
Keyword(s):  
Heat Capacity ◽  
Isothermal Compressibility ◽  
Isochoric Heat Capacity
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